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Search: id:A018793
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A018793 Number of subsets of { 1, ..., n } containing an A.P. of length 8. +0
1
0, 0, 0, 0, 0, 0, 0, 0, 1, 3, 8, 20, 48, 112, 256, 684, 1696, 3840, 8575, 18939, 41452, 90046, 206952, 466731, 1037736, 2233540, 4782408, 10194180, 21638844, 47278465, 102437882, 220088444, 470234676 (list; graph; listen)
OFFSET

0,10
CROSSREFS

Sequence in context: A001792 A018795 A018794 this_sequence A018792 A018791 A026723

Adjacent sequences: A018790 A018791 A018792 this_sequence A018794 A018795 A018796

KEYWORD

nonn

AUTHOR

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

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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