a(n) = n^n + n!.A053042a(n) = n^n + n!.Terms a(0) =2a(1) =6a(2) =33a(3) =280a(4) =3245a(5) =47376a(6) =828583a(7) =16817536a(8) =387783369a(9) =10003628800a(10) =285351587411External referencesoeis: A053042