Number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 421", based on the 5-celled von Neumann neighborhood.
A272049
Number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 421", based on the 5-celled von Neumann neighborhood.
Terms
- a(0) =1a(1) =8a(2) =5a(3) =40a(4) =17a(5) =108a(6) =29a(7) =180a(8) =65a(9) =324a(10) =61a(11) =460a(12) =113a(13) =676a(14) =101a(15) =788a(16) =225a(17) =1092a(18) =185a(19) =1384a(20) =249a(21) =1656a(22) =237a(23) =1864a(24) =377a(25) =2288a(26) =317a(27) =2660a(28) =469a(29) =3064
External references
- oeis: A272049