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 A212333 #7 Sep 08 2022 08:46:02
%S A212333 1,1,25,1728,234256,52521875,17596287801,8235430000000,
%T A212333 5132188731375616,4108400332687853397,4108469075197275390625,
%U A212333 5019255990031848807858176,7355827511386641000000000000,12736801848653359358345383963927,25724477018923486959881583081626689
%N A212333 n-th power of the n-th pentagonal number.
%H A212333 Bruno Berselli, <a href="/A212333/b212333.txt">Table of n, a(n) for n = 0..100</a>
%F A212333 a(n) = A000326(n)^n.
%t A212333 Join[{1}, Table[(n ((3 n - 1)/2))^n, {n, 14}]]
%o A212333 (Magma) [(n*(3*n-1)/2)^n: n in [0..14]];
%Y A212333 Cf. A000312, A085741, A062206.
%K A212333 nonn,easy
%O A212333 0,3
%A A212333 _Bruno Berselli_, May 09 2012