A263600 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 or 2, and rows and columns in increasing lexicographic order.

15, 1687, 69792, 2736666, 123176874, 5641347668, 249947653938, 11092958334732, 494534011115264, 22060105603804064, 982920625501269624, 43799276302849495414, 1952019382459362360458, 86999072734508636631708

Offset

1,1

Comments

Column 3 of A263602.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=3
..0..4..5..6....0..1..2.11....0..1..2..3....2..3..5..6....0..4..7.11
..1..2..3..7....4..7..6.15...12..5..9.10....4..0..1.10....9..8..1.15
..8.11.15.14....5..9..8..3...13..4..7.11....8.12..7.11...10..6..2..3
..9.10.12.13...14.10.12.13...14..8..6.15....9.13.14.15...14..5.12.13

Crossrefs

Cf. A263602.

Sequence in context: A182925 A208020 A205423 * A208860 A195891 A195521

Adjacent sequences: A263597 A263598 A263599 * A263601 A263602 A263603

Keyword

nonn

Author

R. H. Hardin, Oct 22 2015

Status

approved