5175225
domain: N
Appears in sequences
- 8-fold factorials: a(n) = Product_{k=0..n-1} (8*k+1).at n=6A045755
- Octuple factorial, 8-factorial, n!8, n!!!!!!!!.at n=41A114800
- Triangle T(n,k) = Product_{j=0..k} n*j+1.at n=41A153189
- Triangle T(n,k) represents the coefficients of (x^9*d/dx)^n, where n=1,2,3,...;generalization of Stirling numbers of second kind A008277, Lah-numbers A008297.at n=15A223511