Pentadecathlon on snacker

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Pentadecathlon on snacker
x = 20, y = 17, rule = B3/S23 6bo4bo$4b2ob4ob2o$6bo4bo4$2o16b2o$bo16bo$bobo12bobo$2b2o12b2o$7bo4bo$ 5b2ob4ob2o$7bo4bo$2b2o12b2o$bobo12bobo$bo16bo$2o16b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 9 ZOOM 12 LOOP 45 ]]
Pattern type Oscillator
Number of cells 52
Bounding box 20 × 20
Period 45 (mod: 45)
Heat 48.7
Volatility 0.87 | 0.01
Kinetic symmetry Unspecified
Discovered by Unknown
Year of discovery Unknown

Pentadecathlon on snacker is a period-45 oscillator composed of a pentadecathlon and a snacker. Although it is composed of two oscillators of smaller periods (15 and 9 respectively), it is considered to be non-trivial, because it has two cells that oscillate at the full period. It was the first non-trivial period 45 oscillator to be discovered and was discovered sometime before August 1995. In terms of its 52 cells, it is the second smallest known non-trivial period 45 oscillator, after pentadecathlon on thumb 1 with 48 cells.

Image gallery

Generation 5 reveals the two cells that oscillate at the full period (in green).
7bo4bo7b$5b2ob4ob2o5b$7bo4bo7b2$2o16b2o$bo16bob$bobo12bobob$2b2o12b2o 2b$7bo4bo7b$5b2ob4ob2o5b$7bo4bo7b$2b2o12b2o2b$bobo12bobob$bo16bob$2o 16b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 GPS 9 ZOOM 12 LOOP 45 ]]
An alternate form of pentadecathlon
on snacker, with a slightly
smaller bounding box of 20×18

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See also

External links