5748019200
domain: N
Appears in sequences
- a(n) = n*n! = (n+1)! - n!.at n=12A001563
- a(n) = n!*Fibonacci(n+1).at n=11A005442
- E.g.f. 1/(1-x^2-x^3).at n=12A052597
- E.g.f. x^2*(1+x-x^2)/(1-x)^2.at n=12A052633
- a(2) = 6, otherwise a(n) = n*n!.at n=12A052655
- a(n) = 2*n*(2*n)!.at n=6A062779
- Number of integers in {1, 2, ..., n!} that are coprime to n.at n=12A074930
- Number of degree-n permutations with (mutually) relatively prime cycle lengths.at n=12A079128
- a(1) = 1, a(n+1) = n*n! for n >= 1.at n=12A094258
- Sum of all possible sums formed from all but one of the previous terms, starting 1.at n=13A094304
- Number of permutations on [n] that are the n-th power of a permutation.at n=13A247009
- Denominator of Bernoulli(2n)/(2n!).at n=13A255506
- a(n) = n! * [x^n] exp(Sum_{k=1..n, gcd(n,k) = 1} x^k / k).at n=13A335088
- Number of minimum vertex colorings in the complement of the path graph on n nodes.at n=22A371210