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 A109331 #3 Mar 30 2012 18:59:35
%S A109331 7,13,20,34,48,76,90,111,167,188,216,258,279,349,370,398,426,475,489,
%T A109331 552,594,636,657,713,727,734,790,895,909,930,958,972,1077,1098,1168,
%U A109331 1231,1308,1413,1476,1518,1546,1609,1686,1868,1896,1931,1987,2036,2050
%N A109331 Integers with mutual residues of 6 or more.
%C A109331 This is the special case k=6 of sequences with mutual k-residues. In general, a(1)=k+1 and a(n)=min{m | m>a(n-1), mod(m,a(i))>=k, i=1,...,n-1}. k=0 gives natural numbers A000027, k=1 prime numbers A000040 and k=2 gives A109022.
%H A109331 S. Mustonen, <a href="http://www.survo.fi/papers/resseq.pdf">On integer sequences with mutual k-residues</a>
%K A109331 nonn
%O A109331 1,1
%A A109331 _Seppo Mustonen_, Aug 23 2005