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A007688 Number of 5-colorings of cyclic group of order n.
(Formerly M3514)
1
4, 16, 52, 144, 420, 816, 1732, 3508, 7060, 18640 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

Table of n, a(n) for n=1..10.

R. Haas, Three-colorings of finite groups or an algebra of nonequalities, Math. Mag., 63 (1990), 211-225.

R. Hass, Letter to N. J. A. Sloane, Aug. 1994

CROSSREFS

Cf. A007687.

Sequence in context: A316321 A058234 A188125 * A320237 A197132 A266943

Adjacent sequences:  A007685 A007686 A007687 * A007689 A007690 A007691

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane

EXTENSIONS

a(6)-a(10) from Andrey Zabolotskiy, Jul 12 2017

STATUS

approved

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Last modified May 25 22:17 EDT 2019. Contains 323576 sequences. (Running on oeis4.)