-1198

Appears in sequences

• G.f.: q^(2*n)* Product_{m=0..n-1} (1-q^(2*m+1))^2.at n=43A097198
• a(n) = - 4*a(n-2) - a(n-4), a(0) = 1, a(1) = -4, a(2) = -6, a(3) = 15.at n=10A109731
• Numerator of Hermite(n, 11/29).at n=2A160259
• Expansion of k(q)^3 * k'(q)^2 * (K(q) / (Pi/2))^6 / 64 in powers of q where k(), k'(), K() are Jacobi elliptic functions.at n=27A225872
• Expansion of q * (phi(-q^2) * psi(-q)^2)^4 in powers of q where phi(), psi() are Ramanujan theta functions.at n=17A225912
• Expansion of q^(-1/2) * k(q) * (1 - k(q)^4) * (K(q) / (Pi/2))^6 / 4 in powers of q where k(), k'(), K() are Jacobi elliptic functions.at n=8A225923
• G.f.: Re((i; x)_inf), where (a; q)_inf is the q-Pochhammer symbol, i = sqrt(-1).at n=56A278399
• Expansion of Product_{k>=1} (1 - x^k)^k/(1 - x^(5*k))^(5*k).at n=28A285285