This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A051489 #16 Jul 28 2025 19:31:11
%S A051489 1,4,32,368,5392,94932,1941760,45136576,1173741824,33739007300,
%T A051489 1061917364224,36314872537968,1340612376924160,53132088082450132,
%U A051489 2250010931847299072,101388548387203175168,4843806013966239465472
%N A051489 a(n) = n^(n+2) + (n+2)^n.
%H A051489 G. C. Greubel, <a href="/A051489/b051489.txt">Table of n, a(n) for n = 0..350</a>
%t A051489 Table[n^(n+2)+(n+2)^n,{n,0,20}] (* _Harvey P. Dale_, Jul 28 2025 *)
%o A051489 (Magma) [n^(n+2) + (n+2)^n: n in [0..30]]; // _G. C. Greubel_, Jul 14 2021
%o A051489 (Sage) [n^(n+2) + (n+2)^n for n in (0..30)] # _G. C. Greubel_, Jul 14 2021
%Y A051489 Cf. A007925, A046065, A051442. - _Vladimir Joseph Stephan Orlovsky_, Jan 23 2009
%K A051489 nonn
%O A051489 0,2
%A A051489 _N. J. A. Sloane_