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 A186976 #8 Mar 30 2012 17:37:34 %S A186976 2,1,3,0,26,1,72,9,14,29,228,15,431,55,115,75,928,70,743,205,633,225, %T A186976 2499,70,3571,958,1085,728,1626,350,6979,1231,2061,822,10800,450, %U A186976 13978,2361,2750,2772,20114,1507,15718,2761,7370,4422,33082,2457,13971 %N A186976 Number of ordered quintuples of distinct pairwise coprime positive integers with largest element n. %H A186976 Alois P. Heinz, <a href="/A186976/b186976.txt">Table of n, a(n) for n = 7..200</a> %e A186976 a(7) = 2 because there are 2 ordered quintuples of distinct pairwise coprime positive integers with largest element 7: (1,2,3,5,7), (1,3,4,5,7). %Y A186976 Column 5 of triangle A186972. First differences of A015698. %K A186976 nonn %O A186976 7,1 %A A186976 _Alois P. Heinz_, Mar 01 2011