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A001325 Number of Post functions.
(Formerly M5065 N2193)
0
18, 2862, 158942078604 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

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).

LINKS

Table of n, a(n) for n=1..3.

CROSSREFS

Sequence in context: A136834 A174637 A162449 * A008994 A036214 A188799

Adjacent sequences:  A001322 A001323 A001324 * A001326 A001327 A001328

KEYWORD

nonn,bref,more,changed

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified May 18 05:08 EDT 2013. Contains 225419 sequences.