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 A349091 #16 Dec 25 2021 15:06:12 %S A349091 53,54,55,78,91,120,128,134,135,136,162,167,168,170,171,210,226,228, %T A349091 230,231,246,247,248,249,250,251,252,253,288,298,299,300,319,321,323, %U A349091 324,325,345,347,350,351,377,378,390,392,396,397,398,399,401,402,403,404,405,406,435,447,450,453,457,458,459,460,462,463,464,465 %N A349091 Where zeros occur in A349083. These correspond to rationals, 0 < p/q < 1, that have no solution p/q = 1/x + 1/y + 1/z, 0 < x < y < z. %C A349091 For index k, p/q = A002260(k)/A003057(k). %H A349091 Jud McCranie, <a href="/A349091/b349091.txt">Table of n, a(n) for n = 1..732</a> %e A349091 53 is a term because A349083(53)=0, indicating that 8/11 = 1/x + 1/y + 1/z has no solution. %Y A349091 Cf. A349082, A002260, A003057, A349090, A349092. %K A349091 nonn %O A349091 1,1 %A A349091 _Jud McCranie_, Dec 12 2021