-1450

Appears in sequences

• Expansion of f(-x^2, -x^4)^2 / (f(x^3, -x^6) * f(-x, x^2)) in powers of x where f(,) is Ramanujan's general theta function.at n=32A261326
• Expansion of 3 * b(q^2) * c(q^2) / c(q)^2 in powers of q where b(), c() are cubic AGM theta functions.at n=16A261576
• Expansion of Product_{k>=1} (1 - x^k)^(k-1).at n=31A319108
• a(n) = Sum_{d divides n} (-1)^(d + n/d) * d^2.at n=33A321558