-9920

Appears in sequences

• Expansion of e.g.f. sin(x)*sin(tanh(x)) (even powers only).at n=4A009549
• Sum_{k=1..2n-1} J(4*n,k)*k^2, where J(i,j) is the Jacobi symbol.at n=30A097544
• Sequence arising from study of multiplicative complexity of symmetric functions over a field with characteristic p.at n=36A250109
• Coefficients in the expansion of 1/([r] + [2r]x + [3r]x^2 + ...); [ ] = floor, r = 7/4.at n=21A279678
• Coefficient of x^n in 1/(n+1) * (1 - 2*x - 2*x^2)^(n+1).at n=10A307969