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 A108302 #5 Dec 15 2017 17:36:49
%S A108302 1,11,24,327,4256,53125,646656,7823543,816777216,9387420489,102,112,
%T A108302 125,1328,14257,153126,1646657,17823544,1816777217,19387420490,205,
%U A108302 215,228,2331,24260,253129,2646660,27823547,2816777220,29387420493,3028,3128
%N A108302 Concatenate n and the sum of the digits of n raised to their own power (A045503).
%H A108302 Harvey P. Dale, <a href="/A108302/b108302.txt">Table of n, a(n) for n = 0..1000</a>
%e A108302 a(15)=153126 because 1^1 + 5^5 = 3126.
%t A108302 cnsd[n_]:=Module[{idn=IntegerDigits[n]/.(0->1),c},c=Total[idn^idn];n*10^IntegerLength[c]+c]; Join[{1},cnsd/@Range[40]] (* _Harvey P. Dale_, Nov 25 2016 *)
%K A108302 base,easy,nonn
%O A108302 0,2
%A A108302 _Jason Earls_, Jun 29 2005