A187271 Number of nonempty subsets of {1, 2, ..., n} with <=10 pairwise coprime elements.
1, 3, 7, 11, 23, 27, 55, 71, 103, 115, 231, 247, 495, 543, 615, 727, 1455, 1519, 3039, 3231, 3615, 3871, 7743, 7999, 11167, 11903, 14655, 15487, 30951, 31207, 62147, 69503, 75765, 79855, 89440, 91230, 180285, 189556, 205432
Offset: 1
Keywords
Links
- Alois P. Heinz, Table of n, a(n) for n = 1..200
Crossrefs
Column 10 of triangle A187262.
Formula
a(n) = A187262(n,10).