A014050 a(n) = (n^2+1)^n.

1, 2, 25, 1000, 83521, 11881376, 2565726409, 781250000000, 318644812890625, 167619550409708032, 110462212541120451001, 89116503268220597577728, 86380562306022715087890625, 99045780329059370000000000000, 132595005683061140853836321918569

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn

Links

• Winston de Greef, Table of n, a(n) for n = 0..215

Crossrefs

Cf. A136516.

Programs

Mathematica

Table[(n^2+1)^n,{n,0,20}] (* Harvey P. Dale, Sep 20 2023 *)

Formula

a(n) = Sum_{k=0..n} binomial(n,k)*n^(2*k). - Vaclav Kotesovec, Oct 16 2016