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

0, 0, 0, 789696, 10664384, 48391584, 132995984, 276318288, 482853584, 752575536, 1083942480, 1475455440, 1926184124, 2435663832, 3003713808, 3630272848, 4315325376, 5058867816, 5860899668, 6721420864, 7640431404, 8617931288

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