417605
domain: N
Appears in sequences
- Expansion of (1 + 5*x - 12*x^2 - 80*x^3)/(1 - 33*x^2 + 272*x^4).at n=9A097113
- A sequence a(n) such that a(n+1)^2 - a(n)^2 are perfect squares.at n=9A180313
- a(n) = 5*n^4.at n=17A269792
- a(n) = (n+1) * (2^n + 1)^n.at n=4A326011
- Odd numbers k such that k divides A005940(k).at n=39A364545
- a(n) is the smallest number k in the sorted sequence S(q) = {k : rad(k) = q}, q = A120944(n), such that tau(k) - A008479(k) is not positive, where rad = A007947 and tau = A000005.at n=28A373737