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 A186992 #6 Mar 30 2012 17:37:34
%S A186992 1,2,4,4,12,4,28,16,32,12,116,16,248,48,72,112,728,64,1512,192,384,
%T A186992 256,3783,255,3086,732,2674,826,14164,255,25999,6275,5769,3785,8818,
%U A186992 1681,67036,7984,13643,4910,133296,2664,218406,24268,26254
%N A186992 Number of subsets of {1, 2, ..., n} containing n and having <=8 pairwise coprime elements.
%H A186992 Alois P. Heinz, <a href="/A186992/b186992.txt">Table of n, a(n) for n = 1..200</a>
%Y A186992 Column 8 of triangle A186975. Sum of A186991 and A186979.
%K A186992 nonn
%O A186992 1,2
%A A186992 _Alois P. Heinz_, Mar 03 2011