OFFSET
1,3
LINKS
J. de Ruiter, Counting Domino Coverings and Chessboard Cycles, 2010.
EXAMPLE
The smallest 5 X 2n board admitting a closed Knight's tour is the 5 X 6, on which there are 8 such tours.
CROSSREFS
KEYWORD
nonn
AUTHOR
Johan de Ruiter, Dec 05 2010
STATUS
approved