User:C28/387P132

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387P132
x = 50, y = 50, rule = B3/S23 15b2o$11b2obobo$12bobo19bo$12bo2bo16b3o$11b2obobob2ob2o8bo$10bo3b2o3b obo4b2o4bo$11b3o5bobo4b2o5bo$14b5obo8b3obo$11b2obo2bo9bobob2o$10bobob 2o2b5o4bob2o$10bo3bo3bo4bo15b2o3bo$11b3ob2obob3o6bo8bo2bobobo2bo$13bo 6bo7b3o7bob2obob4o$37b2obo2bo$14bo4bo17bo4bob2ob2o$2b2o12b2o19b2o3bob obo2bo$3bo2b2o22bo6b2obobo2bo2b2o$3bobo2bo20bobo5b2obobo$4bob2obo21bo 5b2obobo2bo$6bo2b4o12b2o2bo7bo2bo2b3o$7bob5o11b3o9b2obobo$6bo3b3o13b2o 10bobo2b3o$5b3o30bobo4bo$5b3o21b3o7bo$29b3o$28bobo12bo$10bo17b2o13bo$ 4bo4bobo29bobo$4b3o2bobo25bo2b2obo$7bobob2o22b3o2b2o$4b3o2bo2bo24bo$4b o2bobob2o28b2o2bo$7bobob2o28bo2bobo$2o2bo2bobob2o29b2o2bo$o2bobobo3b2o 19b2o12b2o$b2ob2obo4bo17bo4bo$6bo2bob2o6b3o$b4obob2obo17bo6bo$bo2bobo bo2bo6bo3bo4b3obob2ob3o$5bo3b2o15bo4bo3bo3bo$18bo2bo5b5o2b2obobo$17bo 2b2o10bo2bob2o$16bobobo2bo5bob5o$16bob3o3bo3bobo5b3o$17bobobobo4bobo3b 2o3bo$18bo8b2ob2obobob2o$15b3o16bo2bo$15bo19bobo$33bobob2o$33b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 45 ]]
Pattern type Oscillator
Number of cells 387
Bounding box 50 × 50
Period 132
Mod 33
Heat 178.9
Volatility 0.73
Strict volatility 0.35
Discovered by C28
Year of discovery 2021

387P132 is a period 132 oscillator found by C28 on November 9th, 2021. It consists of a U-turner being hassled in a loop by 4 pairs of 64P6s and T-nosed p4s[1].

It's one of the 3 known oscillators that hassle 1 or more U-turners, the other 2 being Raucci's p217 and an unnamed p16

Variations

The reaction used in the oscillator (which was found a few hours before the oscillator itself[2]) works with any domino sparker of period 5 and above[note 1] and any dot sparker of period 4 and above (excluding p6). Since the dot sparker prevents the formation of a traffic light that would otherwise render the whole oscillator useless, it can be shifted or replaced with domino sparkers[3]. Some examples are shown below.

68b2o3bo$67bo2bobobo2bo83b3o58b2o3bo$3b3o8b2o3bo37b3o7bob2obob4o33b3o 47b3o46b3o8bo2bobobo2bo$3b3o7bo2bobobo2bo33b3o6b2o4bo38b3o6b2ob2o35bo bo47b3o8bob2obob4o$2bobo8bob2obob4o32bobo6bo2bob2obob3o32bobo8bobo36b 2o8b2ob2o34bobo8b2o4bo$2b2o8b2obo2bo37b2o6b3o2bobobo4bo31b2o8bo2bo47b obo35b2o8bo2bob2obob3o$11bo2bob2ob5o40b3o4bob2o2b2o44bob2o43bo2bo44b3o 2bobobo4bo$11bo2bo2bobobo2bo39b3o4b3o45bobobobo47bob2o41b3o4bob2o2b2o $11bo5bo2bo2b2o39b3ob2o4bo43bobob2obo43bobobobo42b3o4b3o$11bo3bob2o46b o3bobob2o44b2o3bo43bobob2obo42b3ob2o4bo$11bo3bobo2bo45b2obobo49b3o45b 2o3bo44bo3bobob2o$11bo3bob4o46bobo2b3o46bo49b3o46b2obobo$12b2obobo49b obo4bo89b2o5bo49bobo2b3o$6b2o5bobo2b3o39b2o6bo45b2o46bo4bo45b2o6bobo4b o$4bo4bo3bobo4bo37bo4bo48bo4bo93bo4bo5bo$14bo146bo6bo$3bo6bo46bo6bo46b o6bo40b3obob2ob3o39bo6bo$b3obob2ob3o42b3obob2ob3o42b3obob2ob3o37bo4bo 3bo3bo36b3obob2ob3o$o4bo3bo3bo40bo4bo3bo3bo40bo4bo3bo3bo37b5o2b2obobo 35bo4bo3bo3bo$b5o2b2obobo41b5o2b2obobo41b5o2b2obobo42bo2bob2o37b5o2b2o bobo$6bo2bob2o47bo2bob2o47bo2bob2o40bob5o45bo2bob2o$3bob5o47bob5o47bo b5o42bobo5b3o39bob5o$2bobo5b3o43bobo5b3o43bobo5b3o39bobo3b2o3bo37bobo 5b3o$2bobo3b2o3bo42bobo3b2o3bo42bobo3b2o3bo37b2ob2obobob2o38bobo3b2o3b o$b2ob2obobob2o42b2ob2obobob2o42b2ob2obobob2o45bo2bo38b2ob2obobob2o$8b o2bo50bo2bo50bo2bo47bobo45bo2bo$9bobo51bobo51bobo45bobob2o45bobo$7bob ob2o48bobob2o48bobob2o44b2o47bobob2o$7b2o52b2o52b2o97b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 10 THUMBSIZE 2 ]]
Variations on the reaction. (click above to open LifeViewer)

One of the above variations can be used to make 394P132[4]

15b2o$11b2obobo$12bobo$12bo2bo$11b2obobob2ob2o$10bo3b2o3bobo7bo$11b3o 5bobo7b3o$14b5obo5bo5bo$11b2obo2bo8b6obo$10bobob2o2b5o8bobo$10bo3bo3b o4bo2b2obo3b2o4b2o3bo$11b3ob2obob3o3b2o4bo5bo2bobobo2bo$13bo6bo7b2o2b o5bob2obob4o$30b2o5b2obo2bo$14bo4bo17bo4bob2ob2o$10bo5b2o19b2o3bobobo 2bo$8b3o18bo7b2obobo2bo2b2o$7bo3b2o15bob2o5b2obobo$6bob2obobo13b2ob2o 5b2obobo2bo$6bobobobo12b5o7bo2bo2b3o$5b2obo16b3o9b2obobo$8bo2bo14b2o10b obo2b3o$8bobo27bobo4bo$7b2ob2o17b3o7bo$29b3o$28bobo$10bo17b2o8b2ob2o$ 4bo4bobo27bobo$4b3o2bobo26bo2bo$7bobob2o28bob2o$4b3o2bo2bo24bobobobo$ 4bo2bobob2o23bobob2obo$7bobob2o24b2o3bo$2o2bo2bobob2o26b3o$o2bobobo3b 2o19b2o5bo$b2ob2obo4bo17bo4bo$6bo2bob2o5b2o$b4obob2obo5bo2b2o7bo6bo$b o2bobobo2bo5bo4b2o3b3obob2ob3o$5bo3b2o4b2o3bob2o2bo4bo3bo3bo$16bobo8b 5o2b2obobo$16bob6o8bo2bob2o$17bo5bo5bob5o$18b3o7bobo5b3o$20bo7bobo3b2o 3bo$27b2ob2obobob2o$34bo2bo$35bobo$33bobob2o$33b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 45 THUMBSIZE 2 ]]
394P132 (click above to open LifeViewer)

The bounding box can be reduced to 46-by-46 cells by replacing the 64P6s with modified 80P6s at the cost of increased population[5][6].

5b2o2b2ob2o18bo$5bo2bobobo17b3o$6b2o2bo3b2obo11bo10b2o$3b3o2bobo3bob2o 2bo3b2o4bo8bo2bo$2bo2bob2obo7b3o3b2o5bo7bo2bo$2bo2bobo4b6o9b3obo5bob4o b2o$3b3o2b3o3bo2bob2o4bobob2o6b2o4bobo$6bobo2b3o2b2obobo3bob2o11b2obo $5b2obo4bo3bo3bo15b3ob2obo$9b3obob2ob3o6bo8bo2bo5bo$11bo6bo7b3o7bo2bo b5o$35b2obo$12bo4bo17bo2bobo3b2o$2o12b2o19b2obobo4bo$bo2b2o29b2obobob 2o$bobo2bo28b2obobo2bo$2bob2obo27b2o3bobo$4bo2b4o24bo4bob2o$5bob5o23b 2obo2bo$4bo3b3o25bob2obo$3b3o30bo2bob2o$3b3o21b3o7b2o$27b3o$26bobo12b o$7b2o17b2o13bo$3b2obo2bo29bobo$4bob2obo25bo2b2obo$4bo2bob2o22b3o2b2o $2b2obo4bo24bo$3bobo3b2o28b2o2bo$2bo2bobob2o28bo2bobo$2b2obobob2o29b2o 2bo$o4bobob2o19b2o12b2o$2o3bobo2bo17bo4bo$7bob2o6b3o$5obo2bo17bo6bo$o 5bo2bo6bo3bo4b3ob2obob3o$bob2ob3o15bo3bo3bo4bob2o$2bob2o10bo2bo4bobob 2o2b3o2bobo$obo4b2o6bo2b2o5b2obo2bo3b3o2b3o$2ob4obo5bobobo2bo6b6o4bob o2bo$3bo2bo7bob3o3bo2b3o7bob2obo2bo$3bo2bo8bobobobo3bo2b2obo3bobo2b3o $4b2o10bo11bob2o3bo2b2o$13b3o17bobobo2bo$13bo18b2ob2o2b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 45 THUMBSIZE 2 ]]
(click above to open LifeViewer)

No stable version of the reaction is known as of August 2022.

Notes

  1. p4 can work as well, but the domino spark would have to be delivered alone, not in the manner 64P6 does.

See also

References

  1. C28 (November 9, 2021). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  2. C28 (November 9, 2021). Re: Thread for your periodic conduits that do not necessarily involve Herschels (discussion thread) at the ConwayLife.com forums
  3. C28 (January 20, 2022). Re: Thread for your unsure discoveries (discussion thread) at the ConwayLife.com forums
  4. C28 (January 20, 2022). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  5. Matthias Merzenich (November 12, 2019). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  6. C28 (February 1, 2022). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums