154751

Appears in sequences

• Triangle read by rows: T(n,k) = (n-1)*T(n-1,k) + T(n-2,k), with T(n,n-1)=1, T(n,n-2)=n-2, for n >= 1, 0 <= k <= n-1.at n=47A228340
• Third diagonal (T(n,2)) of triangle in A228340.at n=7A228341