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 A173339 #6 Jul 09 2014 16:39:57 %S A173339 1,3,4,6,8,10,14,15,21,22,26,33,34,35,36,38,39,46,51,55,57,58,60,62, %T A173339 65,69,74,77,82,84,85,86,87,91,93,94,95,100,106,111,115,118,119,120, %U A173339 122,123,129,133,134,141,142,143,145,146 %N A173339 Positive integers n for which the number of divisors of n^n is a square. %o A173339 (PARI) isok(n) = issquare(numdiv(n^n)); \\ _Michel Marcus_, Jul 09 2014 %Y A173339 Cf. A062319 %K A173339 nonn %O A173339 1,2 %A A173339 _John W. Layman_, Feb 16 2010