59288

Appears in sequences

• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 249", based on the 5-celled von Neumann neighborhood.at n=42A271014
• a(n) = a(n-1) + 6*a(n-3) + 2*a(n-4), with a(0) = a(1) = 1, a(2) = 3, a(3) = 6.at n=14A339600
• Expansion of g.f. 1/(1 - Sum_{k>=1} sigma_k(k) * x^k).at n=6A352839