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 A154100 #4 Aug 10 2015 00:12:54 %S A154100 2,2,9,10,7,26,37,36,30,56,26,38,145,26,170,265,208,198,130,298,73, %T A154100 304,135,362,208,663,730,238,767,510,704,350,915,142,584,850,369,1090, %U A154100 1090,702,730,95,1080,1245,97,802,1664,738,1090,1971,1904,1276,1295,738,1394 %N A154100 Numbers n with property that n^2 are nonzero square terms in A077116. %e A154100 2^2=4=A077116(2), 2^2=4=A077116(5), 9^2=81=A077116(13), 10^2=100=A077116(34). %Y A154100 Cf. A154101 corresponding indices of terms in A077116: 2,5,13,34,... %K A154100 nonn %O A154100 1,1 %A A154100 _Zak Seidov_, Jan 04 2009