-9120

Appears in sequences

• Expansion of (Sum_{n=-inf..inf} x^(n^2))^(-18).at n=3A004419
• Table T(n,k), n >= 0, k = 1..2^n, read by rows, giving coefficients of iterations of polynomial x^2-x: see Comments for precise definition.at n=51A273894
• Expansion of theta_4(q)^20 in powers of q = exp(Pi i t).at n=3A319308
• a(n) = Sum_{k=1..n} (-1)^(k-1) * binomial(k+2,3) * floor(n/k).at n=43A366938