A186990 Number of subsets of {1, 2, ..., n} containing n and having <=6 pairwise coprime elements.

1, 2, 4, 4, 12, 4, 28, 16, 32, 12, 116, 16, 242, 48, 72, 110, 664, 63, 1228, 177, 353, 239, 2667, 219, 2155, 599, 1847, 657, 7665, 219, 11613, 3047, 3297, 2209, 4946, 1057, 24328, 3902, 6551, 2564, 40158, 1410, 55194, 8308, 9490

Offset

1,2

Links

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

Crossrefs

Column 6 of triangle A186975. Sum of A186989 and A186977.

Sequence in context: A366616 A186988 A186989 * A186991 A186992 A186993

Adjacent sequences: A186987 A186988 A186989 * A186991 A186992 A186993

Keyword

nonn

Author

Alois P. Heinz, Mar 03 2011

Status

approved