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A079137 Number of knight's tour diagrams on a 4 X k chessboard. 6
0, 0, 8, 0, 82, 744, 6378, 31088, 189688, 1213112, 6683852, 36486328, 201282470, 1083585304, 5706117458, 29819231288, 154430502724, 790787799376, 4014945695196, 20241304810488, 101336136490228 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

REFERENCES

Kraitchik, M. Mathematical Recreations. New York: W.W. Norton, p. 263, 1942.

LINKS

Table of n, a(n) for n=1..21.

George Jellis, Knights tour diagrams

Dr Colin Rose, Knights tours

Eric Weisstein's World of Mathematics, Knight's Tour

CROSSREFS

See A079312 for 4 times these numbers, A123935 for twice these numbers, A123936 for these numbers halved.

Sequence in context: A167318 A186979 A067817 * A181689 A221887 A277257

Adjacent sequences:  A079134 A079135 A079136 * A079138 A079139 A079140

KEYWORD

nonn

AUTHOR

Eric W. Weisstein, Dec 28 2002

EXTENSIONS

More terms from André Pönitz (poenitz(AT)htwm.de), Jun 11 2003

Edited by N. J. A. Sloane, Oct 30 2006, following suggestions from Colin Rose

STATUS

approved

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Last modified May 30 03:31 EDT 2017. Contains 287305 sequences.