-2424

Appears in sequences

• Expansion of (psi(x^3) / psi(x))^2 in powers of x where psi() is a Ramanujan theta function.at n=23A217786
• A signed triangle of V. I. Arnold for the Springer numbers (A001586).at n=23A256679
• Product_{n>=1} (1 + a(n)*x^n/(n!)^2) = BesselI(0,2*sqrt(x)).at n=4A348207