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A018795 Number of subsets of { 1, ..., n } containing an A.P. of length 10. +0
1
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 3, 8, 20, 48, 112, 256, 576, 1280, 3280, 7968, 17840, 39487, 86587, 188396, 407230, 875320, 1872332, 4218648, 9382099, 20646176, 44125836, 93902740 (list; graph; listen)
OFFSET

0,12
CROSSREFS

Sequence in context: A143662 A049610 A001792 this_sequence A018794 A018793 A018792

Adjacent sequences: A018792 A018793 A018794 this_sequence A018796 A018797 A018798

KEYWORD

nonn

AUTHOR

David W. Wilson (davidwwilson(AT)comcast.net)

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Last modified November 24 14:25 EST 2009. Contains 167438 sequences.

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