Pentadecathlon on snacker

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.

Pentadecathlon on snacker
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Pattern type Oscillator
Number of cells 52
Bounding box 20×20
Period 45
Mod 45
Heat 48.7
Volatility 0.87
Strict volatility 0.01
Discovered by Unknown
Year of discovery Unknown
Generation 5 reveals the two cells that oscillate at the full period (in green).
An alternate form of pentadecathlon on snacker, with a slightly smaller bounding box of 20×18
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See also
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