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A007985 Co-growth function of a certain group. 0
2, 2, 6, 22, 58, 146, 414, 1206, 3410, 9634, 27670, 79926 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

Stephen P Humphries, "Cogrowth groups and the Dedekind-Frobenius group determinant", Mathematical Proceeding of the Cambridge Philosophical Society volume 121 Part 2 pages 193-217 (1997).

LINKS

Table of n, a(n) for n=1..12.

CROSSREFS

Sequence in context: A225942 A004077 A202743 * A097090 A085403 A112478

Adjacent sequences:  A007982 A007983 A007984 * A007986 A007987 A007988

KEYWORD

nonn

AUTHOR

Stephen P. Humphries

STATUS

approved

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Last modified December 19 23:11 EST 2014. Contains 252240 sequences.