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 A244563 #11 Jan 01 2024 01:51:33 %S A244563 1290677,4095859,5841947,7158107,8959163,9044629,9252323,9933857, %T A244563 10306187,11000303,15598231,16010419,16625747,16907749,18068693, %U A244563 19428919,20189993,23487497,25614893,26471633,28410121,30375901,30666137,32552687 %N A244563 Odd integers n such that for every integer k>0, n*2^k+1 has a divisor in the set { 3, 5, 7, 13, 19, 37, 109 }. %C A244563 For n > 144 a(n) = a(n-144) + 209191710, the first 144 values are in the table. %H A244563 Pierre CAMI, <a href="/A244563/b244563.txt">Table of n, a(n) for n = 1..144</a> %F A244563 For n > 144 a(n) = a(n-144) + 209191710. %Y A244563 Cf. A076336, A244072, A244561, A244562. %K A244563 nonn %O A244563 1,1 %A A244563 _Pierre CAMI_, Jun 30 2014