A051489 - OEIS

%I #14 Sep 08 2022 08:44:59

%S 1,4,32,368,5392,94932,1941760,45136576,1173741824,33739007300,

%T 1061917364224,36314872537968,1340612376924160,53132088082450132,

%U 2250010931847299072,101388548387203175168,4843806013966239465472

%N a(n) = n^(n+2) + (n+2)^n.

%H G. C. Greubel, <a href="/A051489/b051489.txt">Table of n, a(n) for n = 0..350</a>

%o (Magma) [n^(n+2) + (n+2)^n: n in [0..30]]; // _G. C. Greubel_, Jul 14 2021

%o (Sage) [n^(n+2) + (n+2)^n for n in (0..30)] # _G. C. Greubel_, Jul 14 2021

%Y Cf. A007925, A046065, A051442. - _Vladimir Joseph Stephan Orlovsky_, Jan 23 2009

%K nonn

%O 0,2

%A _N. J. A. Sloane_