-2420
domain: Z
Appears in sequences
- Expansion of Product_{k>=1} (1 - x^k)^15.at n=9A010822
- Expansion of e.g.f.: exp(tanh(x)-log(x+1))=1+1/2!*x^2-4/3!*x^3+9/4!*x^4-48/5!*x^5...at n=7A013495
- Least entry in character table of the symmetric group S_n.at n=12A061220
- a(n) = Sum_{k=1..n} mu(k)*k^2.at n=46A336276
- a(n) = n! * Sum_{k=0..n} (-k)^(n-k) * (n-k)^k/k!.at n=5A351780
- Expansion of Sum_{k>0} x^(2*k)/(1+x^k)^5.at n=14A363613
- a(n) = [(x*y)^n] Product_{k>=1} (1 - x^k - y^k)^n.at n=6A381012
- Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of B(x)^k, where B(x) is the g.f. of A384895.at n=63A384900
- a(n) = Sum_{i=1..n} i^2*(-1)^ceiling(sqrt(i)).at n=23A392677