-6240

Appears in sequences

• Expansion of q^(-1/2) * (eta(q)^4 * eta(q^4)^2 / eta(q^2)^3)^2 in powers of q.at n=39A138502
• Coefficient array of orthogonal polynomials P(n,x)=x*P(n-1,x)-(2n-3)*P(n-2,x), P(0,x)=1,P(1,x)=x.at n=48A178103
• E.g.f. equals the imaginary part of the i-th iteration of (x + x^2), where i=sqrt(-1).at n=6A179201
• n-th derivative of sech(x)^sinh(x) at x=0.at n=9A215679
• a(n) = Glaisher's function beta(2n+1).at n=31A322032