283465647360
domain: N
Appears in sequences
- Unsigned Stirling numbers of first kind, s(n+1,2): a(n+1) = (n+1)*a(n) + n!.at n=14A000254
- a(n) = (Sum 1/k) (Product k), where both the sum and product are over those k where 1 <= k <= n/2 and gcd(k,n) = 1.at n=27A099001
- Sum of all n-digit Stirling numbers of first kind.at n=11A131014
- (n-1)-st elementary symmetric function of the first n terms of (2,1,4,3,6,5,8,7,...)=A103889.at n=13A203196
- Odd numbered terms of the sequence whose n-th term is the (n-1)-st elementary symmetric function of (i, 2i, 3i, ..., ni), where i=sqrt(-1).at n=6A203239
- Irregular triangular array read by rows. T(n,k) is the number of n-permutations with exactly k distinct cycle lengths; n>=1, 1<=k<=floor( (-1+(1+8n)^(1/2))/2 ).at n=41A224211
- Expansion of e.g.f. -log(1 - x)*arctanh(x).at n=15A302611