

A186441


Number of nvertex knight's tours on the 8x8 chessboard summed over all choices for the starting position.


2



64, 336, 1672, 8320, 39616, 186544, 847520, 3846192, 16784384, 72946352, 304472976, 1265186112
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OFFSET

1,1


REFERENCES

L. Lant, A method for calculating the Knight's total tour count, Congress. Numerant., 202 (2010), 3340. [Lant comments that "a(5)=40208 has not yet been verified."]


LINKS



EXAMPLE

a(1) = 64, since the knight cannot move.


PROG



CROSSREFS



KEYWORD

nonn,fini,more


AUTHOR



EXTENSIONS



STATUS

approved



