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 A244070 #24 Jul 12 2014 16:25:05
%S A244070 509203,762701,992077,1247173,1254341,1330207,1330319,1730653,1730681,
%T A244070 1976473,2313487,2344211,2554843,3177553,3292241,3419789,3423373,
%U A244070 3661529,3661543,3784439,4384979,4442323,4506097,4507889,4626967,5049251,5050147,6610811,7117807,7576559,7629217,8086751,8101087,8252819,8253043,8643209,9053711,9053767,9545351,9560713,9666029,10219379,10280827,10581097,10609769,10702091,10913233,10913681
%N A244070 Odd integers n such that for every integer k>0, n*2^k-1 has a divisor in the set {3, 5, 7, 13, 17, 241}.
%C A244070 For n > 48, a(n) = a(n-48) + 11184810, the first 48 values are given in the data.
%F A244070 For n > 48, a(n) = a(n-48) + 11184810.
%Y A244070 Cf. A076337, A244071, A244072, A244073, A244074, A244076.
%K A244070 nonn
%O A244070 1,1
%A A244070 _Pierre CAMI_, Jun 19 2014