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 A154101 #4 Aug 10 2015 00:13:18 %S A154101 2,5,13,34,65,130,185,193,205,260,338,482,865,901,970,1325,1352,1450, %T A154101 1469,1490,1825,1928,2701,3077,3604,3757,4234,4250,4637,5245,5465, %U A154101 5525,6649,6722,7300,7514,7585,7930,8066,8109,10370,10685,10804,11125,12545 %N A154101 Numbers n with property that A077116(n) is nonzero square. %C A154101 A077116(a(n)) = A154101(n)^2. %e A154101 a(1) = 2 because A077116(2) = A154101(1)^2 = 4, a(3) = 13 because A077116(13) = A154101(3)^2 = 81. %Y A154101 Cf. A154100, A077116. %K A154101 nonn %O A154101 1,1 %A A154101 _Zak Seidov_, Jan 04 2009