2739136

Appears in sequences

• a(1)=1; for n>1, a(n) = 8*a(n-1) + n.at n=7A014831
• a(n) = Sum_{i=1..n} i*n^(n-i).at n=8A062805
• Triangle T(n,k) read by rows: T(n,k) = (n-k+1)*T(n-1,k-1) + (3*k-2)*k*T(n-1,k), initialized by T(n,1) = T(n,n) = 1.at n=37A166972