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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)
6
6, 1230, 134355076, 5960467529298425, 143255899980867527046714276, 2621669158378151850086910541198116201940, 49039857307708443467467125153076407586398190249948742656 (list; graph; refs; listen; history; 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.

CROSSREFS

Cf. A000616, A001323.

Sequence in context: A160005 A172923 A131675 * A183585 A060706 A052278

Adjacent sequences:  A001321 A001322 A001323 * A001325 A001326 A001327

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

EXTENSIONS

More terms from Vladeta Jovovic (vladeta(AT)eunet.rs), Aug 09 2000

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Last modified February 15 07:36 EST 2012. Contains 205712 sequences.