Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 129", based on the 5-celled von Neumann neighborhood.
A270218
Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 129", based on the 5-celled von Neumann neighborhood.
Terms
- a(0) =1a(1) =4a(2) =28a(3) =140a(4) =620a(5) =2604a(6) =10668a(7) =43180a(8) =173740a(9) =697004a(10) =2792108a(11) =11176620a(12) =44722860a(13) =178924204a(14) =715762348a(15) =2863180460
External references
- oeis: A270218