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 A147773 #10 Aug 19 2016 04:33:57
%S A147773 1,2,3,6,15,36,94,256,729,2154,6583,20736,67156,223150,759375,2642246,
%T A147773 9387369,34012224,125537306,471556032,1801088541,6989288907,
%U A147773 27536796143,110075314176,446169698824,1832746290156,7625597484987,32122422687591
%N A147773 a(n) = round((n^n)^(1/3)).
%H A147773 Chai Wah Wu, <a href="/A147773/b147773.txt">Table of n, a(n) for n = 1..500</a>
%F A147773 a(n) = A105209(A000312(n)). - _Michel Marcus_, Aug 19 2016
%t A147773 lst={};Do[AppendTo[lst,Round[(n^n)^(1/3)]],{n,40}];lst
%o A147773 (Python)
%o A147773 from gmpy2 import iroot_rem
%o A147773 def A147773(n):
%o A147773 i, j = iroot_rem(n**n,3)
%o A147773 return int(i+int(8*j >= 6*i*(2*i+1)+1)) # _Chai Wah Wu_, Aug 16 2016
%Y A147773 Cf. A105209, A000312.
%K A147773 nonn
%O A147773 1,2
%A A147773 _Vladimir Joseph Stephan Orlovsky_, Nov 12 2008