58372

Appears in sequences

• a(n) = 2*a(n-1) + (n-2)*a(n-2) with a(0) = 1, a(1) = 2.at n=10A027412
• a(n) = Sum_{k=0..2*n} (k+1)*T(n,k), T given by A027960.at n=10A027981