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 A209837 #8 Mar 31 2012 10:30:50
%S A209837 3,5,9,15,17,23,27,29,33,39,45,47,53,57,59,65,69,75,83,87,89,93,95,99,
%T A209837 113,117,123,125,135,137,143,149,153,159,165,167,177,179,183,185,197,
%U A209837 209,1331,1332,48504,48508,87163,416318,780357,1845848,3177027,3177029,4309597,12369422
%N A209837 Integers n such that for all i > n the largest prime factor of product(i+k, {k,0,13}) exceeds the largest prime factor of product(n+k, {k,0,13}).
%C A209837 Heuristics show that these terms are valid, but a strict proof is yet to be done.
%H A209837 Andrey V. Kulsha, <a href="/A209837/b209837.txt">Table of n, a(n) for n = 1..72</a>
%Y A209837 Cf. A200570, A209838.
%K A209837 nonn
%O A209837 1,1
%A A209837 _Andrey V. Kulsha_, Mar 14 2012