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 A305440 #12 Jun 01 2018 09:21:51 %S A305440 2,5,8,12,21,22,23,24,33,36,45,46,48,50,67,72,75,78,85,86,88,91,92, %T A305440 107,111,112,121,130,139,149,156,158,161,170,180,189,193,196,200,205, %U A305440 224,225,230,242,270,291,305,341,369,386,387,394,397,403,426,459,475,493,521,603,666,750 %N A305440 Indices k such that A292518(k) = 0. %C A305440 Conjecture: for k > 3957 there are no more terms in this sequence. %H A305440 Seiichi Manyama, <a href="/A305440/b305440.txt">Table of n, a(n) for n = 1..72</a> %e A305440 2 is in the sequence because A292518( 2) = 0. %e A305440 3957 is in the sequence because A292518(3957) = 0. %Y A305440 Cf. A276517, A292518, A305441. %K A305440 nonn %O A305440 1,1 %A A305440 _Seiichi Manyama_, Jun 01 2018