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A187384 Number of 10-step S, NW and NE-moving king's tours on a nXn board summed over all starting positions 1
0, 0, 0, 280, 3792, 17052, 44464, 92628, 159328, 245946, 350386, 472648, 612732, 770638, 946366, 1139916, 1351288, 1580482, 1827498, 2092336, 2374996, 2675478, 2993782, 3329908, 3683856, 4055626, 4445218, 4852632, 5277868, 5720926, 6181806 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

Row 10 of A187377

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..50

FORMULA

Empirical: a(n) = 8911*n^2 - 82691*n + 181756 for n>8

CROSSREFS

Sequence in context: A177844 A207075 A187178 * A024214 A094895 A223107

Adjacent sequences:  A187381 A187382 A187383 * A187385 A187386 A187387

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 09 2011

STATUS

approved

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Last modified May 22 15:37 EDT 2013. Contains 225552 sequences.