Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 397", based on the 5-celled von Neumann neighborhood.
A271690
Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 397", based on the 5-celled von Neumann neighborhood.
Terms
- a(0) =1a(1) =8a(2) =44a(3) =204a(4) =852a(5) =3488a(6) =14064a(7) =57188a(8) =228044a(9) =908996a(10) =3633896a(11) =14522920a(12) =58046984a(13) =232143556a(14) =928391308a(15) =3713183932
External references
- oeis: A271690