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 A193945 #24 Feb 19 2013 04:25:14 %S A193945 1,3,7,9,63,168,322,1518,1680,10878,17575,70224,97524,224846,612360, %T A193945 15473807,61011223,108384553,137308589,999208250,1497820158, %U A193945 22377473780,238092971076,316419292600,23931257472314 %N A193945 Integers n such that for all i > n the largest prime factor of i(i+1)(i+2)(i+3) exceeds the largest prime factor of n(n+1)(n+2)(n+3). %C A193945 Heuristics show that these terms are valid, but a strict proof is yet to be done. %C A193945 a(1)-a(11) verified via Størmer's theorem. - _Charles R Greathouse IV_, Feb 19 2013 %H A193945 Andrey V. Kulsha, <a href="/A193945/b193945.txt">Table of n, a(n) for n = 1..25</a> %Y A193945 Cf. A003033, A193944, A193946, A145605. %K A193945 nonn %O A193945 1,2 %A A193945 _Andrey V. Kulsha_, Aug 10 2011