Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 817", based on the 5-celled von Neumann neighborhood.
A273647
Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 817", based on the 5-celled von Neumann neighborhood.
Terms
- a(0) =1a(1) =4a(2) =28a(3) =160a(4) =636a(5) =2828a(6) =11620a(7) =47388a(8) =189744a(9) =762824a(10) =3056616a(11) =12220008a(12) =48892908a(13) =195589736a(14) =782409540a(15) =3129838452
External references
- oeis: A273647