Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 201", based on the 5-celled von Neumann neighborhood.
A270721
Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 201", based on the 5-celled von Neumann neighborhood.
Terms
- a(0) =1a(1) =4a(2) =28a(3) =133a(4) =656a(5) =2705a(6) =10709a(7) =44364a(8) =177969a(9) =715725a(10) =2861636a(11) =11469576a(12) =45878364a(13) =183603688a(14) =734497160a(15) =2938408604
External references
- oeis: A270721