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A001009 Triangle giving number L(n,k) of normalized k X n Latin rectangles. 7
1, 1, 1, 1, 1, 1, 1, 3, 4, 4, 1, 11, 46, 56, 56, 1, 53, 1064, 6552, 9408, 9408, 1, 309, 35792, 1293216, 11270400, 16942080, 16942080, 1, 2119, 1673792, 420909504, 27206658048, 335390189568, 535281401856, 535281401856, 1, 16687, 103443808 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,8
REFERENCES
CRC Handbook of Combinatorial Designs, 1996, p. 104.
LINKS
Eric Fernando Bravo, On concatenations of Padovan and Perrin numbers, Math. Commun. (2023) Vol 28, 105-119.
B. D. McKay and E. Rogoyski, Latin squares of order ten, Electron. J. Combinatorics, 2 (1995) #N3.
D. S. Stones, The many formulas for the number of Latin rectangles, Electron. J. Combin 17 (2010), A1.
Eric Weisstein's World of Mathematics, Latin Rectangle.
CROSSREFS
Rows include A001623, A000573. Diagonals include A000576.
Sequence in context: A204255 A283753 A120649 * A120650 A103121 A291086
KEYWORD
nonn,tabl,nice
AUTHOR
EXTENSIONS
More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Sep 12 2010
STATUS
approved

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Last modified April 25 12:27 EDT 2024. Contains 371969 sequences. (Running on oeis4.)