A264250 Number of (6+1)X(n+1) arrays of permutations of 0..n*7+6 with each element having directed index change 0,0 1,1 0,-1 -1,1 or 0,-2.

21, 3897, 243881, 23471441, 2448948509, 240749059561, 24147725322385, 2442157152192853, 247183118093226721, 25071873547312991221, 2544178152383033238169, 258242305061196701371469

Offset

1,1

Comments

Row 6 of A264244.

Links

Table of n, a(n) for n=1..12.

Example

Some solutions for n=2
..0..3..2....1..2..4....0..1..2....0..1..2....0..1..2....0..3..2....0..3..2
..4..5..1....3..0..5....3..4..5....3..4..5....4..6..5....5..6..1....5..6..1
..6..7..8....8..7.10....7..9..8....6..9..8....7..3..8....8..7..4....8..7..4
..9.12.11....9..6.11...11..6.13...11.12..7...10.11.13....9.12.11....9.12.11
.13.14.10...12.15.14...12.14.10...14.15.10...12..9.14...14.13.10...14.13.10
.15.18.17...17.18.13...15.17.19...17.16.13...15.18.17...17.18.19...16.17.19
.20.19.16...19.20.16...18.20.16...18.19.20...19.20.16...20.15.16...18.15.20

Crossrefs

Cf. A264244.

Sequence in context: A221722 A153833 A221164 * A250064 A200998 A209473

Adjacent sequences: A264247 A264248 A264249 * A264251 A264252 A264253

Keyword

nonn

Author

R. H. Hardin, Nov 09 2015

Status

approved