A189655 Number of 7Xn array permutations with each element moving zero or one space horizontally, diagonally or antidiagonally

1, 6272, 1180167, 1598901325, 1113666564608, 1104421532180261, 958681588788944613, 890636373071604964608, 805563236027350658919747, 738517619493670317553084705, 673437704833463142294374124032

Offset

1,2

Comments

Row 7 of A189650

Links

R. H. Hardin, Table of n, a(n) for n = 1..65

Example

Some solutions for 7X3
..0..1..2....0..1..2....0..1..2....0..1..2....0..1..2....0..1..2....0..1..2
..3..6..5....4..6..5....3..5..4....3..6..5....3..4..5....3..6..5....4..3..5
..4..8.10...10..3..7....6..9..8....7..8..4....7..6..8....4.11..8....6..8..7
..9.11..7....9..8.11....7.11.10...10.11.13...10..9.11...13.12..7...10.12.11
.12.14.13...16.17.14...12.13.14...12..9.16...12.14.13...10..9.14...13..9.14
.16.15.17...13.12.19...16.17.19...15.14.19...19.15.17...15.17.16...16.20.17
.19.18.20...18.15.20...18.15.20...18.17.20...18.20.16...19.18.20...18.15.19

Crossrefs

Sequence in context: A035904 A234440 A254635 * A071091 A209826 A107582

Adjacent sequences: A189652 A189653 A189654 * A189656 A189657 A189658

Keyword

nonn

Author

R. H. Hardin Apr 24 2011

Status

approved