a(n) = (n + 1)^2 + n!*L_n(-1), where L_n(x) is the Laguerre polynomial.

A317094

a(n) = (n + 1)^2 + n!*L_n(-1), where L_n(x) is the Laguerre polynomial.

Terms

    a(0) =2a(1) =6a(2) =16a(3) =50a(4) =234a(5) =1582a(6) =13376a(7) =130986a(8) =1441810a(9) =17572214a(10) =234662352a(11) =3405357826a(12) =53334454586a(13) =896324308830

External references