A264223 Number of (6+1)X(n+1) arrays of permutations of 0..n*7+6 with each element having directed index change 0,0 0,1 1,0 -1,0 or 0,-2.

441, 133836, 14973263, 1511983080, 181148689096, 21168809029549, 2432712841059645, 282324948756028527, 32799974867595442968, 3805691907386472699393, 441780492510292572147920

Offset

1,1

Comments

Row 6 of A264217.

Links

Table of n, a(n) for n=1..11.

Example

Some solutions for n=2
..0..1..2....0..1..5....3..4..2....0..1..5....0..1..2....0..4..2....0..1..2
..5..3..4....3..4..2....0..1..5....3..4..2....3..4..5....6..1..5....5..7..4
..8..6..7....6.10..7....9..7..8....6.10..8....9..7.11....3..7..8....3.10..8
.11.10.14...11..9..8....6.10.11....9..7.11....6.13..8...12..9.10....6..9.14
..9.12.13...12.13.14...15.13.14...12.13.14...12.10.14...14.16.11...12.16.11
.17.19.16...18.16.17...12.16.17...18.19.20...17.16.20...15.13.20...15.13.20
.15.18.20...15.19.20...20.18.19...15.16.17...15.18.19...18.19.17...18.19.17

Crossrefs

Cf. A264217.

Sequence in context: A264088 A264277 A268874 * A233343 A110996 A013769

Adjacent sequences: A264220 A264221 A264222 * A264224 A264225 A264226

Keyword

nonn

Author

R. H. Hardin, Nov 08 2015

Status

approved