-1873

Appears in sequences

• Expansion of 1/((1 + x^3 - x^4)*(1 - x)).at n=47A177825
• G.f.: 1/(1+x+x^3).at n=21A199804
• Expansion of phi(-x)^2 * f(-x)^6 + 32 * x * psi(-x)^2 * f(-x^4)^6 in powers of x where phi(), psi(), f() are Ramanujan theta functions.at n=42A215601
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 331", based on the 5-celled von Neumann neighborhood.at n=23A271280
• Numerators of the z-sequence for the Sheffer matrix S2*P = A048993*A007318 = A049020.at n=6A288867