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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
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: A283753 A377968 A120649 * A120650 A103121 A291086
KEYWORD
nonn,tabl,nice
AUTHOR
EXTENSIONS
More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Sep 12 2010
STATUS
approved