A186991 Number of subsets of {1, 2, ..., n} containing n and having <=7 pairwise coprime elements.

1, 2, 4, 4, 12, 4, 28, 16, 32, 12, 116, 16, 248, 48, 72, 112, 720, 64, 1447, 190, 380, 254, 3444, 247, 2795, 701, 2410, 784, 11588, 247, 19472, 4839, 4802, 3175, 7300, 1449, 45641, 6191, 10520, 3908, 82986, 2124, 124554, 15874, 17608

Offset: 1

Author

Alois P. Heinz, Mar 03 2011

Keywords

• nonn

Links

• Alois P. Heinz, Table of n, a(n) for n = 1..200

Crossrefs

Column 7 of triangle A186975. Sum of A186990 and A186978.