A186979 Number of ordered octuples of distinct pairwise coprime positive integers with largest element n.

8, 0, 65, 2, 4, 2, 339, 8, 291, 31, 264, 42, 2576, 8, 6527, 1436, 967, 610, 1518, 232, 21395, 1793, 3123, 1002, 50310, 540, 93852, 8394, 8646, 9696, 187722, 6072, 141942, 13860, 44814, 25542, 472593, 15444, 126012, 33198, 96078, 60294, 959714

Offset: 17

Author

Alois P. Heinz, Mar 02 2011

Keywords

• nonn

Examples

			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).
		

Links

• Alois P. Heinz, Table of n, a(n) for n = 17..200

Crossrefs

Column 8 of triangle A186972. First differences of A186984.