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 A155539 #13 Aug 18 2024 18:59:31
%S A155539 1,5,57,945,18785,423393,10609137,292475249,8804293473,287589316833,
%T A155539 10137858491849,383799398752905,15536767912476993,669920208810550337,
%U A155539 30659724555890596833,1484638520651877849057,75846305139481944586817
%N A155539 a(n) = n^(n+3) + (n+3)^n.
%C A155539 1^4 + 4^1 = 5, 2^5 + 5^2 = 57, ...
%H A155539 Vincenzo Librandi, <a href="/A155539/b155539.txt">Table of n, a(n) for n = 0..300</a>
%t A155539 lst={};Do[m=n+3;q=n^m+m^n;AppendTo[lst,q],{n,0,4!}];lst
%t A155539 Table[n^(n+3)+(n+3)^n,{n,0,20}] (* _Harvey P. Dale_, Aug 18 2024 *)
%o A155539 (Magma) [n^(n+3)+(n+3)^n: n in [0..20] ]; // _Vincenzo Librandi_, Aug 25 2011
%Y A155539 Cf. A046065, A051442, A007925, A051489, A153217, A076980.
%K A155539 nonn
%O A155539 0,2
%A A155539 _Vladimir Joseph Stephan Orlovsky_, Jan 23 2009
%E A155539 Offset corrected by _Arkadiusz Wesolowski_, Aug 24 2011