

A187494


Number of 7element nondividing subsets of {1, 2, ..., n}.


1



1, 1, 3, 3, 5, 5, 9, 12, 21, 27, 41, 46, 74, 99, 137, 153, 203, 307, 414, 464, 612, 788, 1126, 1292, 1645, 2039, 2614, 3291, 4120, 5127, 6356, 7180, 9786
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OFFSET

43,3


COMMENTS

A set is called nondividing if no element divides the sum of any nonempty subset of the other elements.


LINKS



EXAMPLE

a(43) = 1 because there is one 7element nondividing subset of {1,2,...,43}: {24,28,31,35,36,40,43}.


CROSSREFS



KEYWORD

nonn,more


AUTHOR



STATUS

approved



