A263524 Number of (6+1)X(n+1) arrays of permutations of 0..n*7+6 filled by rows with each element moved a city block distance of 0 or 1, and rows and columns in increasing lexicographic order.

547, 41035, 4213002, 362159570, 30867389241, 2543460828164, 206581153730159, 16572337392178369, 1318639365847533759, 104272166323846221854, 8207516654911011254296, 643763147421954338071019

Offset: 1

Author

R. H. Hardin, Oct 19 2015

Keywords

• nonn

Comments

Row 6 of A263519.

Examples

			Some solutions for n=2
..0..1..5....0..4..5....0..1..2....0..4..5....0..1..2....0..1..2....0..1..5
..3..4..2....3..1..2....6..3..5....3..1..2....6..3..5....4..3..5....4..3..2
..6..7..8....7..6..8....7..4..8....7..6..8....7..4..8....6..7.11....6..8..7
..9.13.14....9.11.10...10..9.11....9.11.10....9.11.10....9.10..8....9.10.11
.12.10.11...15.12.17...12.14.17...15.12.14...15.12.13...13.12.14...12.13.17
.18.15.17...16.13.14...15.13.20...18.13.16...16.17.14...16.15.17...16.15.14
.19.16.20...18.19.20...18.16.19...19.20.17...18.19.20...19.18.20...19.18.20
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..185

Crossrefs

Cf. A263519.