a(n) = permanent of the n X n matrix with entries a(i, i) = i^2 and a(i, j) = 1 elsewhere.

A303000

a(n) = permanent of the n X n matrix with entries a(i, i) = i^2 and a(i, j) = 1 elsewhere.

Terms

    a(0) =1a(1) =5a(2) =52a(3) =918a(4) =24630a(5) =934938a(6) =47736048a(7) =3157054776a(8) =262661665176

External references