Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 521", based on the 5-celled von Neumann neighborhood.

A272736

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 521", based on the 5-celled von Neumann neighborhood.

Terms

    a(0) =1a(1) =5a(2) =18a(3) =42a(4) =95a(5) =164a(6) =269a(7) =385a(8) =598a(9) =818a(10) =1107a(11) =1403a(12) =1836a(13) =2284a(14) =2813a(15) =3381a(16) =4186a(17) =4966a(18) =5879a(19) =6775a(20) =7952a(21) =9112a(22) =10417a(23) =11757a(24) =13474a(25) =15094a(26) =16991a(27) =18847a(28) =21012a(29) =23280

External references