-7205

Appears in sequences

• Series reversion of x + x^2 - x^5 - x^6 - x^7.at n=10A278077
• Inverse Euler transform of the sum-of-divisors or sigma function A000203.at n=50A320780
• Product_{n>=1} (1 + x^n)^a(n) = 1 + Sum_{n>=1} sigma(n) * x^n, where sigma = A000203.at n=50A328776