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Search: id:A060021
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| A060021 |
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Maximal size of a subset of any Abelian group of order n that does not contain 0 and fails to span the group nontrivially. |
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+0
2
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| 1, 1, 2, 2, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 7, 6, 8, 7, 9
(list; graph; listen)
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OFFSET
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2,3
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REFERENCES
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J. R. Griggs, Spanning subset sums for finite Abelian groups, Discrete Math., 229 (2001), 89-99.
J. R. Griggs (griggs(AT)math.sc.edu), personal communication, Apr 24, 2001.
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CROSSREFS
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Cf. A060020.
Sequence in context: A084500 A084557 A024417 this_sequence A000006 A061017 A088462
Adjacent sequences: A060018 A060019 A060020 this_sequence A060022 A060023 A060024
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Mar 17 2001
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EXTENSIONS
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n=21 is the first open case - it is either 7 or 8.
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