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A018793
Number of subsets of { 1, ..., n } containing an A.P. of length 8.
0
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
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OFFSET
0,10
LINKS
Table of n, a(n) for n=0..32.
CROSSREFS
Sequence in context:
A049610
A018795
A018794
*
A018792
A360263
A018791
Adjacent sequences:
A018790
A018791
A018792
*
A018794
A018795
A018796
KEYWORD
nonn
AUTHOR
David W. Wilson
STATUS
approved
