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A121269
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Number of maximal sum-free subsets of {1,2,...,n}.
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0
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1, 2, 2, 4, 5, 6, 8, 13, 17, 23, 29, 37, 51, 66, 86, 118, 158, 201, 265, 359, 471, 598, 797, 1043, 1378, 1765, 2311, 3064, 3970, 5017, 6537, 8547, 11020, 14007, 18026, 23404, 30026, 37989, 48945, 62759, 80256
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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LINKS
| N. Hindman and H. Jordan, Measures of sum-free intersecting families, New York J. Math. 13 (2007), 97-106.
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EXAMPLE
| a(5)=5 because the maximal sum-free subsets of {1,2,3,4,5} are {1,4}, {2,3}, {2,5}, {1,3,5} and {3,4,5}
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CROSSREFS
| Sequence in context: A056902 A089676 A062436 * A056219 A085140 A138883
Adjacent sequences: A121266 A121267 A121268 * A121270 A121271 A121272
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KEYWORD
| nonn
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AUTHOR
| N. Hindman (nhindman(AT)aol.com), Aug 23 2006
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