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 A324812 #11 Jul 02 2021 01:53:44 %S A324812 1,2,5,10,11,17,23,31,41,47,50,55,59,67,73,83,97,98,103,109,127,137, %T A324812 149,154,157,167,179,187,191,197,211,227,233,241,257,266,269,277,283, %U A324812 307,313,331,347,353,367,374,379,389,391,401,419,431,439,449,461,467,487,499,509,523,547,563,571,587,598,599,605,607,617,631 %N A324812 Numbers k such that A156552(k) is a square. %C A324812 Sequence A005940(1+(n^2)), n >= 0, sorted into ascending order. %H A324812 Antti Karttunen, <a href="/A324812/b324812.txt">Table of n, a(n) for n = 1..10000</a> %H A324812 <a href="/index/Bi#binary">Index entries for sequences related to binary expansion of n</a> %H A324812 <a href="/index/Ch#char_fns">Index entries for characteristic functions</a> %H A324812 <a href="/index/Pri#prime_indices">Index entries for sequences computed from indices in prime factorization</a> %o A324812 (PARI) for(n=1,oo,if(A324822(n),print1(n,", "))); %Y A324812 Cf. A000290, A005940, A156552, A324822 (characteristic function). %Y A324812 Subsequence of A324813. %K A324812 nonn %O A324812 1,2 %A A324812 _Antti Karttunen_, Mar 16 2019