57424792320
domain: N
Appears in sequences
- a(n) = n!*(1 - 1/2 + 1/3 - ... + c/n), where c = (-1)^(n+1).at n=13A024167
- a(n) = n!*(2/1 - 3/2 + 4/3 - ... + s*(n+1)/n), where s = (-1)^(n+1).at n=13A080958
- Expansion of e.g.f. log(1+x)/(1-x)^2.at n=12A109792
- The number of permutations of {1,2,...,2n} that contain a cycle of length greater than n.at n=6A201546