80951270400
domain: N
Appears in sequences
- a(n) = n*n! = (n+1)! - n!.at n=13A001563
- Unary-binary rooted trees with n nodes.at n=13A029766
- E.g.f. x^2*(1+x-x^2)/(1-x)^2.at n=13A052633
- a(2) = 6, otherwise a(n) = n*n!.at n=13A052655
- Denominators in the series for sin integral Si(x).at n=6A061079
- Coefficient triangle of polynomials used for numerator of g.f.s for column sequences of array A078739.at n=27A089275
- a(1) = 1, a(n+1) = n*n! for n >= 1.at n=13A094258
- Sum of all possible sums formed from all but one of the previous terms, starting 1.at n=14A094304
- a(n) = p*p! where p = prime(n).at n=5A114574
- Row sums of the inverse of number triangle A(n,k) = 1/n! if k <= n <= 2k, 0 otherwise.at n=14A127756
- a(n) = lcm(n^2, n!).at n=13A181857
- Number of minimum vertex colorings in the complement of the path graph on n nodes.at n=24A371210
- Sum of the orders of all permutations of [n] with distinct cycle lengths.at n=13A382780