-1778

Appears in sequences

• Coefficient of q^(2n) in the series expansion of Ramanujan's mock theta function f(q).at n=32A000039
• Numerator of Hermite(n, 6/31).at n=2A160304
• G.f. A(x) satisfies: [x^(n+1)] A(F^n(x)) = 0 for n>0 where F^n(x) denotes the n-th iteration of F(x) = x+x^2 with F^0(x)=x.at n=7A187009
• a(n) = A000730(7*n).at n=16A282941