A264277 Number of (6+1)X(n+1) arrays of permutations of 0..n*7+6 with each element having index change +-(.,.) 0,0 1,0 or 1,2.

441, 65856, 9834496, 981994496, 98054154496, 10563801093680, 1138084297605025, 120994920194795200, 12863520517551001600, 1370025436321870122240, 145914152630921766629136, 15534998773472954027182896

Offset: 1

Author

R. H. Hardin, Nov 10 2015

Keywords

• nonn

Comments

Row 6 of A264272.

Examples

			Some solutions for n=2
..0..4..2....0..4..2....3..1..2....3..1..2....0..4..2....0..1..2....5..1..2
..6..1..5....6..1..5....0..4..8....0..4..5....8..1..5....3..4..5....8..4..0
..3..7.11...11.10..3....9..7..5....9.10.11...11.10..3....9..7..8....3..7.11
.12.10..8...12..7..8....6.10.11....6..7..8...14..7..6....6.13.14....9.13..6
.15.13..9...15.13..9...15.16.14...17.16.14...12.13..9...15.10.11...17.10.14
.20.16.14...20.19.14...20.13.12...20.13.12...18.16.17...12.16.17...18.16.12
.18.19.17...18.16.17...18.19.17...18.19.15...15.19.20...18.19.20...15.19.20
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..39

Crossrefs

Cf. A264272.