322577

Appears in sequences

• Triangle read by rows: T(n,m)=2*Binomial[n, m] - (m! - n! + (-m + n)!).at n=46A155451
• Triangle T(n, k) = 2*(n+1 - mod(n, k+1) - mod(n, n-k+1) ) + (n! - k! - (n-k)!) read by rows.at n=46A176151
• Triangle T(n, k) = 2*(n+1 - mod(n, k+1) - mod(n, n-k+1) ) + (n! - k! - (n-k)!) read by rows.at n=53A176151
• G.f.: exp( Sum_{n>=1} x^n/n * Product_{d|n} (1 + d*x^n)^d ).at n=29A205482