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 A343110 #11 Apr 06 2021 11:03:45 %S A343110 1,2,3,4,5,6,8,9,10,11,12,13,16,17,18,19,20,22,24,25,26,27,29,32,33, %T A343110 34,36,37,38,40,41,43,44,48,50,51,52,53,54,57,58,59,61,64,65,66,67,68, %U A343110 72,73,74,76,80,81,82,83,85,86,88,89,96,97,99,100,101,102 %N A343110 Numbers having no divisor of the form 8*k + 7. %C A343110 Numbers not divisible by at least one of 7, 15, 23, ... %H A343110 Jianing Song, <a href="/A343110/b343110.txt">Table of n, a(n) for n = 1..10000</a> %e A343110 9 is a term since it has no divisor congruent to 7 modulo 8. %o A343110 (PARI) res(n,a,b) = sumdiv(n, d, (d%a) == b) %o A343110 isA343110(n) = (res(n,8,7) == 0) %Y A343110 Numbers having m divisors of the form 8*k + i: A343107 (m=1, i=1), A343108 (m=0, i=3), A343109 (m=0, i=5), this sequence (m=0, i=7), A343111 (m=2, i=1), A343112 (m=1, i=3), A343113 (m=1, i=5), A141164 (m=1, i=7). %Y A343110 Indices of 0 in A188172. %K A343110 nonn,easy %O A343110 1,2 %A A343110 _Jianing Song_, Apr 05 2021