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A289442 Number of abelian groups of order n which fail to meet a certain bound on the size of an unrestricted sumset. 0
0, 0, 0, 0, 1, 0, 0, 1, 2, 2, 3, 1, 2, 2, 2, 4, 5, 4, 6 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,9

REFERENCES

D. Manandhar, Decoding minimum h-fold restricted sumset size of a cyclic group. Research Papers in Mathematics, B. Bajnok, ed., Gettysburg College, Vol. 13 (2012).

LINKS

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

Bela Bajnok, Additive Combinatorics: A Menu of Research Problems, arXiv:1705.07444 [math.NT], May 2017. See p. 113.

CROSSREFS

Sequence in context: A171810 A269978 A097028 * A092331 A299029 A200747

Adjacent sequences:  A289439 A289440 A289441 * A289443 A289444 A289445

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Jul 07 2017

STATUS

approved

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Last modified July 20 16:34 EDT 2019. Contains 325185 sequences. (Running on oeis4.)