Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 998", based on the 5-celled von Neumann neighborhood.
A273856
Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 998", based on the 5-celled von Neumann neighborhood.
Terms
- a(0) =1a(1) =5a(2) =17a(3) =65a(4) =325a(5) =1677a(6) =7541a(7) =31301a(8) =127953a(9) =516089a(10) =2078053a(11) =8336441a(12) =33402517a(13) =133742289a(14) =535237997a(15) =2141529673
External references
- oeis: A273856