1108848

Appears in sequences

• a(n) = 1521*n^2 + 39.at n=27A158768
• Expansion of (phi(x^2) * psi(x^2) / phi(-x)^2)^2 in powers of x where phi(), psi() are Ramanujan theta functions.at n=11A258593
• G.f. satisfies A(x) = 1 + 2*x*A(x) + 2*x^3*A(x)^3.at n=12A367113