A189354 Number of nX8 array permutations with each element moving one space diagonally, horizontally or vertically

1, 7108, 1815601, 1883785285, 1206541811872, 927311536349401, 669245368116765065, 494966160398383884544, 362995012557977063017785, 267122042433316923724049137, 196343414435260084855304091712

Offset

1,2

Comments

Column 8 of A189355

Links

R. H. Hardin, Table of n, a(n) for n = 1..20

Example

Some solutions for 3X8
..1..0..3..2.12.13..7..6....1..0..3..2..5.13.15..6....1..0..3.11..5..4..7.15
.16.17.11.19..4.22..5.14...16.10.18.20.21..4.23..7...16.18..2.19.20.12..6.23
..8..9.10.18.21.20.23.15...17..8..9.11.19.12.14.22...17..8..9.10.21.22.13.14

Crossrefs

Sequence in context: A034230 A183630 A357478 * A252383 A252350 A251948

Adjacent sequences: A189351 A189352 A189353 * A189355 A189356 A189357

Keyword

nonn

Author

R. H. Hardin Apr 20 2011

Status

approved