Raucci's p217

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Raucci's p217
x = 74, y = 74, rule = B3/S23 38b2obo2bob2o$31b2o4bo2bo4bo2bo4b2o$31b2o5bobo4bobo5b2o$39bo6bo6$39bo 6bo$31b2o5bobo4bobo5b2o$31b2o4bo2bo4bo2bo4b2o$38b2obo2bob2o7$b2o7b2o$b 2o7b2o4$27b2o$bo9bo14bo2bo$obo7bobo14bo2bo17bo$o2bo5bo2bo14bo2bo15b2ob o$b2o7b2o16b3o14bo3bo$o11bo32bo2bo$45b3o$62b2o7b2o$o11bo49b2o7b2o$b2o 7b2o$o2bo5bo2bo$obo7bobo$bo9bo$62bo9bo$61bobo7bobo$61bo2bo5bo2bo$62b2o 7b2o$b2o7b2o49bo11bo$b2o7b2o$26b3o$25bo2bo32bo11bo$24bo3bo14b3o16b2o7b 2o$24bob2o15bo2bo14bo2bo5bo2bo$25bo17bo2bo14bobo7bobo$44bo2bo14bo9bo$ 45b2o4$62b2o7b2o$62b2o7b2o7$26b2obo2bob2o$19b2o4bo2bo4bo2bo4b2o$19b2o 5bobo4bobo5b2o$27bo6bo6$27bo6bo$19b2o5bobo4bobo5b2o$19b2o4bo2bo4bo2bo 4b2o$26b2obo2bob2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ ZOOM 3 GPS 60 ]]
Pattern type Oscillator
Number of cells 236
Bounding box 74 × 74
Period 217 (mod: 217)
Heat 345.7
Volatility 0.99 | 0.45
Kinetic symmetry Unspecified
Discovered by David Raucci
Year of discovery 2021
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Raucci's p217 is a period-217 oscillator found by David Raucci on May 5, 2021. It consists of four U-turners (which had no name at the time)[1] being hassled by four Merzenich's p31s.[2]

The bounding box can be reduced from 74×74 to 72×72 by using the diagonal sparks of Merzenich's p31 instead of the domino sparks, but this increases its minimum population from 236 to 256 due to a change in phase.[3]

It, along with an unnamed p132, are the only oscillators known that hassle or shuttle a U-turner or U-turners.

x = 4, y = 4, rule = B3/S23 b3o$b3o$obo$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 16 GPS 20 ]]
U-turner being hassled

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References

  1. C28 (May 4, 2021). Re: Thread for basic questions (discussion thread) at the ConwayLife.com forums
  2. David Raucci (May 5, 2021). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  3. David Raucci (May 18, 2021). Re: Oscillator Discussion thread (discussion thread) at the ConwayLife.com forums

External links