6168961

Appears in sequences

• a(n) = (1/4)*(n^2 - 5*n + 2)*(n-2)! + 1.at n=9A173038
• Triangle T(n, k) = n! * binomial(n, k)^2 - n! + 1, read by rows.at n=31A174689
• Triangle T(n, k) = n! * binomial(n, k)^2 - n! + 1, read by rows.at n=32A174689