Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 270", based on the 5-celled von Neumann neighborhood.

A271088

Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 270", based on the 5-celled von Neumann neighborhood.

Terms

    a(0) =1a(1) =5a(2) =21a(3) =76a(4) =284a(5) =1144a(6) =3760a(7) =14668a(8) =55052a(9) =218316a(10) =866608a(11) =3448660a(12) =13786696a(13) =55045224a(14) =220066408a(15) =880191424

External references