377520

Appears in sequences

• a(n) = Sum_{k=0..2n-2} T(n,k) * T(n,k+2), with T given by A027052.at n=6A027080
• a(n) = n(n+7)(n+1)(n^2+2n+12)/120.at n=31A051746
• Lah numbers: a(n) = n!*binomial(n-1,9)/10!.at n=3A111600
• Molecular topological indices of the complete tripartite graphs K_{n,n,n}.at n=21A192491
• a(n) = RF(n+1,3)*C(n+2,n-1), where RF(a,n) is the rising factorial.at n=10A253285