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A001324 Number of equivalence classes of n-valued Post functions of 2 variables under action of semi-direct product of symmetric group S_2 and complementing group C(2,n).
(Formerly M4316 N1808)
7
6, 1230, 134355076, 5960467529298425, 143255899980867527046714276, 2621669158378151850086910541198116201940, 49039857307708443467467125153076407586398190249948742656 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

REFERENCES

M. A. Harrison and R. G. High, On the cycle index of a product of permutation groups, J. Combin. Theory, 4 (1968), 277-299.

N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

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

I. Strazdins, On the number of types of l-adic functions (in Russian), Proc. Riga Polytech. Inst. 10, No. 1 (1963), 167-186.

LINKS

Table of n, a(n) for n=2..8.

CROSSREFS

Cf. A000616, A001323.

Sequence in context: A172923 A131675 A263437 * A183585 A060706 A052278

Adjacent sequences:  A001321 A001322 A001323 * A001325 A001326 A001327

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

EXTENSIONS

More terms from Vladeta Jovovic, Aug 09 2000

STATUS

approved

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Last modified May 28 00:30 EDT 2022. Contains 354110 sequences. (Running on oeis4.)