Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 291", based on the 5-celled von Neumann neighborhood.

A271130

Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 291", based on the 5-celled von Neumann neighborhood.

Terms

    a(0) =1a(1) =5a(2) =32a(3) =164a(4) =825a(5) =3349a(6) =13344a(7) =54101a(8) =217768a(9) =873501a(10) =3494984a(11) =13983029a(12) =55952168a(13) =223819565a(14) =895289440a(15) =3581106817

External references