Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 219", based on the 5-celled von Neumann neighborhood.
A270931
Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 219", based on the 5-celled von Neumann neighborhood.
Terms
- a(0) =1a(1) =5a(2) =37a(3) =185a(4) =817a(5) =3473a(6) =14437a(7) =59629a(8) =239405a(9) =962201a(10) =3852577a(11) =15427713a(12) =61743929a(13) =247013121a(14) =988192245a(15) =3952817017
External references
- oeis: A270931