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A060021 Maximal size of a subset of any Abelian group of order n that does not contain 0 and fails to span the group nontrivially. 1
1, 1, 2, 2, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 7, 6, 8, 7, 9 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,3

REFERENCES

J. R. Griggs (griggs(AT)math.sc.edu), personal communication, Apr 24, 2001.

LINKS

Table of n, a(n) for n=2..20.

J. R. Griggs, Spanning subset sums for finite Abelian groups, Discrete Math., 229 (2001), 89-99.

CROSSREFS

Cf. A060020.

Sequence in context: A084500 A084557 A024417 * A000006 A061017 A248170

Adjacent sequences:  A060018 A060019 A060020 * A060022 A060023 A060024

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Mar 17 2001

EXTENSIONS

n=21 is the first open case - it is either 7 or 8.

STATUS

approved

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Last modified May 24 20:53 EDT 2019. Contains 323534 sequences. (Running on oeis4.)