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 A187271 #6 Mar 30 2012 17:37:34
%S A187271 1,3,7,11,23,27,55,71,103,115,231,247,495,543,615,727,1455,1519,3039,
%T A187271 3231,3615,3871,7743,7999,11167,11903,14655,15487,30951,31207,62147,
%U A187271 69503,75765,79855,89440,91230,180285,189556,205432
%N A187271 Number of nonempty subsets of {1, 2, ..., n} with <=10 pairwise coprime elements.
%H A187271 Alois P. Heinz, <a href="/A187271/b187271.txt">Table of n, a(n) for n = 1..200</a>
%F A187271 a(n) = A187262(n,10).
%Y A187271 Column 10 of triangle A187262.
%K A187271 nonn
%O A187271 1,2
%A A187271 _Alois P. Heinz_, Mar 07 2011