Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 81", based on the 5-celled von Neumann neighborhood.
A270099
Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 81", based on the 5-celled von Neumann neighborhood.
Terms
- a(0) =1a(1) =4a(2) =40a(3) =196a(4) =844a(5) =3532a(6) =14784a(7) =60248a(8) =242792a(9) =977020a(10) =3920112a(11) =15702644a(12) =62855916a(13) =251527896a(14) =1006303768a(15) =4025613088
External references
- oeis: A270099