# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a186979 Showing 1-1 of 1 %I A186979 #7 Mar 30 2012 17:37:34 %S A186979 8,0,65,2,4,2,339,8,291,31,264,42,2576,8,6527,1436,967,610,1518,232, %T A186979 21395,1793,3123,1002,50310,540,93852,8394,8646,9696,187722,6072, %U A186979 141942,13860,44814,25542,472593,15444,126012,33198,96078,60294,959714 %N A186979 Number of ordered octuples of distinct pairwise coprime positive integers with largest element n. %H A186979 Alois P. Heinz, Table of n, a(n) for n = 17..200 %e A186979 a(20) = 2 because there are 2 ordered octuples of distinct pairwise coprime positive integers with largest element 20: (1,3,7,11,13,17,19,20), (1,7,9,11,13,17,19,20). %Y A186979 Column 8 of triangle A186972. First differences of A186984. %K A186979 nonn %O A186979 17,1 %A A186979 _Alois P. Heinz_, Mar 02 2011 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE