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A187295 Number of 10-step one or two space at a time rook's tours on an n X n board summed over all starting positions 1
0, 0, 0, 789696, 10664384, 48391584, 132995984, 276318288, 482853584, 752575536, 1083942480, 1475455440, 1926184124, 2435663832, 3003713808, 3630272848, 4315325376, 5058867816, 5860899668, 6721420864, 7640431404, 8617931288 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

Row 10 of A187286

LINKS

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

FORMULA

Empirical: a(n) = 29244672*n^2 - 280021012*n + 623972304 for n>17

CROSSREFS

Sequence in context: A115175 A104949 A237895 * A234244 A255762 A255755

Adjacent sequences:  A187292 A187293 A187294 * A187296 A187297 A187298

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 08 2011

STATUS

approved

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Last modified June 26 16:16 EDT 2022. Contains 354885 sequences. (Running on oeis4.)