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A187269 Number of nonempty subsets of {1, 2, ..., n} with <=8 pairwise coprime elements. 2
1, 3, 7, 11, 23, 27, 55, 71, 103, 115, 231, 247, 495, 543, 615, 727, 1455, 1519, 3031, 3223, 3607, 3863, 7646, 7901, 10987, 11719, 14393, 15219, 29383, 29638, 55637, 61912, 67681, 71466, 80284, 81965, 149001, 156985, 170628 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
FORMULA
a(n) = A187262(n,8).
CROSSREFS
Column 8 of triangle A187262. First differences are A186992.
Sequence in context: A187266 A187267 A187268 * A187270 A187271 A187106
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Mar 07 2011
STATUS
approved

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Last modified March 29 05:48 EDT 2024. Contains 371265 sequences. (Running on oeis4.)