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A001623 Number of 3 X n normalized Latin rectangles.
(Formerly M3682 N1502)
4
1, 4, 46, 1064, 35792, 1673792, 103443808, 8154999232, 798030483328 (list; graph; refs; listen; history; internal format)
OFFSET

3,2

REFERENCES

S. M. Kerawala, The enumeration of the Latin rectangle of depth three by means of a difference equation, Bull. Calcutta Math. Soc., 33 (1941), 119-127.

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).

D. S. Stones, The many formulae for the number of Latin rectangles, Electron. J. Combin 17 (2010), A1.

D. S. Stones and I. M. Wanless, Divisors of the number of Latin rectangles, J. Combin. Theory Ser. A 117 (2010), 204-215.

LINKS

Index entries for sequences related to Latin squares and rectangles

CROSSREFS

Cf. A001009.

Sequence in context: A191870 A099023 A000657 * A002077 A113096 A135078

Adjacent sequences:  A001620 A001621 A001622 * A001624 A001625 A001626

KEYWORD

nonn,nice

AUTHOR

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

EXTENSIONS

Better description Jul 15 1995

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Last modified February 15 23:53 EST 2012. Contains 205860 sequences.