1245699

Appears in sequences

• Numbers k such that A048675(sigma(k)) is equal to A048675(2*k).at n=27A331751
• a(n) = [x^n] f(x)^n, where f(x) = (1 - x^7)^7/((1 - x^2)^2 * (1 - x^5)^5).at n=13A372212