Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 401", based on the 5-celled von Neumann neighborhood.

A271804

Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 401", based on the 5-celled von Neumann neighborhood.

Terms

    a(0) =1a(1) =4a(2) =32a(3) =164a(4) =744a(5) =3196a(6) =13376a(7) =55220a(8) =226200a(9) =922156a(10) =3747248a(11) =15191396a(12) =61473672a(13) =248391004a(14) =1002403616a(15) =4040994836

External references