Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 870", based on the 5-celled von Neumann neighborhood.
A273704
Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 870", based on the 5-celled von Neumann neighborhood.
Terms
- a(0) =1a(1) =5a(2) =17a(3) =61a(4) =285a(5) =1097a(6) =4357a(7) =18525a(8) =71949a(9) =287625a(10) =1146973a(11) =4590249a(12) =18358645a(13) =73429641a(14) =293699137a(15) =1174523661
External references
- oeis: A273704