A189654 Number of 6Xn array permutations with each element moving zero or one space horizontally, diagonally or antidiagonally

1, 1681, 144353, 64890337, 16718653553, 5760755884032, 1778231752192145, 579697460209171993, 184886869974436661041, 59593521044870694533545, 19125202990272640992094705, 6150485955232431794501210601

Offset

1,2

Comments

Row 6 of A189650

Links

R. H. Hardin, Table of n, a(n) for n = 1..183

Example

Some solutions for 6X3
..0..3..2....0..2..4....0..1..2....1..0..2....0..1..2....0..5..1....0..3..2
..1..6..5....1..3..5....3..6..4....3..5..4....3..5..7....3..2..7....1..8..4
..7..9..4....6.11..8...10..5..8....6.11..8....4..9..8....4..6..8....6..5..7
.10..8.11...10..9..7....7..9.11....9.14..7...13..6.11...10.14.11...13.10.11
.12.14.16...16.12.13...16.15.14...13.15.10...10.12.14...16..9.13...16..9.14
.15.17.13...15.14.17...13.12.17...16.12.17...15.16.17...15.12.17...15.12.17

Crossrefs

Sequence in context: A370355 A361705 A322745 * A163009 A069331 A156175

Adjacent sequences: A189651 A189652 A189653 * A189655 A189656 A189657

Keyword

nonn

Author

R. H. Hardin Apr 24 2011

Status

approved