Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 561", based on the 5-celled von Neumann neighborhood.
A272936
Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 561", based on the 5-celled von Neumann neighborhood.
Terms
- a(0) =1a(1) =4a(2) =28a(3) =160a(4) =664a(5) =2824a(6) =11584a(7) =45740a(8) =187948a(9) =753044a(10) =3015908a(11) =12077340a(12) =48308716a(13) =193233132a(14) =772949112a(15) =3092203836
External references
- oeis: A272936