A263505 Number of (n+1) X (3+1) arrays of permutations of 0..n*4+3 filled by rows with each element moved a city block distance of 0 1 or 2, and rows and columns in increasing lexicographic order.

204, 54924, 8349744, 1425379543, 255768846517, 45106218220800, 7926850731406310, 1396923001460796082, 246241734024212430336, 43395678521748623480782, 7648012844415558576096743

Offset

1,1

Comments

Column 3 of A263506.

Links

R. H. Hardin, Table of n, a(n) for n = 1..68

Example

Some solutions for n=2
..0..4..7.11....0..5..6.11....0..1..3.11....0..3.10.11....0..2..3.11
..8..6..1..2....1..8..9..7....5..4..6..2....1..5..2..7....1..4..9..6
..9.10..5..3...10..4..2..3....8..9.10..7....4..6..8..9....8.10..5..7

Crossrefs

Cf. A263506.

Sequence in context: A348603 A194192 A339199 * A270605 A072573 A249052

Adjacent sequences: A263502 A263503 A263504 * A263506 A263507 A263508

Keyword

nonn

Author

R. H. Hardin, Oct 19 2015

Status

approved