-3307

Appears in sequences

• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 371", based on the 5-celled von Neumann neighborhood.at n=33A271457
• G.f. satisfies A(x) = 1 / (1 + x*(1 + x*A(x))^4).at n=9A364762