Crown

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Crown
x = 25, y = 14, rule = B3/S23 5bo$4o3bo11bo$3bo3bo9bo3b4o$7bo3b3o3bo3bo$4bo7bo4bo$5b2o13bo$18b2o2$5b 2o8b2o$5bo2b6o2bo$6b2o6b2o$3b3o10b3o$3bo2bobo4bobo2bo$4b2o4b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ THUMBSIZE 2 GPS 3 ZOOM 16 HEIGHT 300 WIDTH 600 LOOP 12 ]]
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Pattern type Oscillator
Number of cells 63
Bounding box 23 × 15
Period 12
Mod 12
Heat 51.7
Volatility 0.73
Strict volatility 0.23
Discovered by Noam Elkies
Year of discovery 1994

Crown is a period-12 oscillator that was found by Noam Elkies on November 19, 1994. Alternatively, it may refer just to the 10-cell piece at the top of the oscillator in generation 10 (shown below in green) that is hassled by two caterers and a heavyweight emulator. The original form of this oscillator used T-nosed p4s instead of caterers. The form with caterers was found by Elkies on January 3, 1995.[1]

Generation 10 reveals a piece that by itself is sometimes referred to as the crown

One day later, Elkies used this oscillator in the following 144-cell period-24 oscillator.[1] Further applications later can be found in the pi orbital and p156 Hans Leo hassler.

#O Noam Elkies, November 20, 1994 #C One of the first period 24 oscillators to be found. x = 25, y = 35, rule = B3/S23 4b2o10b2o7b$3bo2bo2b4o2bo2bo6b$3b3o2b6o2b3o6b$6b10o9b$5bo10bo8b$5b2o8b 2o8b2$11bo7bo5b$5bo6bo5b2o5b$5b2o3bo3bo10b$16b3o2bobob$bobo2b3obo3bo3b ob4ob$b4obo4b3o8b2ob$b2o22b3$11b3o11b5$5bo19b$4o3bo11bo5b$3bo3bo9bo3b 4o$7bo3b3o3bo3bo3b$4bo7bo4bo7b$5b2o13bo4b$18b2o5b2$5b2o8b2o8b$5bo2b6o 2bo8b$6b2o6b2o9b$3b3o10b3o6b$3bo2bobo4bobo2bo6b$4b2o4b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 ]]
144P24, two crowns hassling a blinker
(click above to open LifeViewer)
RLE: here Plaintext: here

Variants

By replacing the caterers with extensible p3 oscillators, an extensible crown can be made:

x = 52, y = 39, rule = B3/S23 10bo3b2o$9bobo2bo6b2o$10b2o3bo5bo6b2o$12b3obo5bo5bo6b2o$10b2o2bobo2b3o bo5bo5bo6b2o$b2o6bo2b3obobo2bobo2b3obo5bo5bo$obo5bobo3bobo2b3obobo2bob o2b3obo5bo5b2o$obob2o3bo3b2ob2o3bobo2b3obobo2bobo2b3obo3bobo$bobobo4b 2obo6b2ob2o3bobo2b3obobo2bobo2bo$3bo7bo5b2obo6b2ob2o3bobo2b3obobob2o$ 2bo2bo5bo6bo5b2obo6b2ob2o3bobobobobo$2bo15bo6bo5b2obo6b2obo2bo3bo$2bo 3bo5bo12bo6bo5b2obo3bo3b3o$2bo3bo3b2o20bo6bo5b4o$2bo7b2ob2ob2o21bo6bo 2bo$2bo2bo4b2o4b3o3b4o4bobo15b2o$3bo8bo3b2o4b2obo7bo6bo$bobobo17b3o3bo 3bo4b2o$obob2o4bo22bo4b2ob2o$obo7bo6bo12bobo5b2o$b2o5bob2o5bo6bo15bo$ 7b2o6bob2o5bo6bo$6bo4b2ob2o6bob2o5bo6bo$8b2o2bobo3b2ob2o6bob2o5bo$4bob o3bobob3o2bobo3b2ob2o6bob2o$4bo5bobobo2bobob3o2bobo3b2ob2o3bo$5b4obobo b3o2bobo2bobob3o2bobo3bobo$6bob2o3bo5bob3o2bobo2bobob3o2bo$6bo7bo5bo5b ob3o2bobo2b2o$5bob3o3b2o6bo5bo5bob3o$7bo2bo9b2o6bo5bo3b2o$4bobo2b2o16b 2o6bo2bobo$3b2o29b2o3bo$3b2o$4bobo2$4bo2bo$4bobo$5bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART THUMBSIZE 2 ZOOM 10 WIDTH 600 HEIGHT 480 GPS 3 LOOP 12 ]]
(click above to open LifeViewer)
RLE: here Plaintext: here

On May 10, 2022, iNoMed found a 58-cell version of this oscillator, using a custom 31-cell domino sparker:[2]

x = 25, y = 16, rule = B3/S23 5b2o11b2o$4bo15bo$7bo9bo$3bo3bo9bo3bo$4o3bo3b3o3bo3b4o$5bo6bo6bo2$7b2o $7bobo7b2o$8b3obobobobo$10bo3bobo$17bo$11bobob2o2bo$13b2obob2o$16bo$ 15b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART THUMBSIZE 2 ZOOM 20 WIDTH 600 HEIGHT 480 GPS 3 LOOP 12 ]]
(click above to open LifeViewer)
RLE: here Plaintext: here
Catagolue: here

See also

References

  1. ↑ 1.0 1.1 Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
  2. ↑ iNoMed (May 10, 2022). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums

External links


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