A263388 Number of (n+1)X(4+1) arrays of permutations of 0..n*4-1 with each element moved a city block distance of exactly 2.

36, 17376, 2205225, 188020096, 24782315776, 3447945608640, 431369679452481, 52701991071361200, 6659057448461741764, 847742465861422866576, 106792577897071860541969, 13418361811042157528624000

Offset

1,1

Comments

Column 4 of A263389.

Links

R. H. Hardin, Table of n, a(n) for n = 1..13

Example

Some solutions for n=2
.10..7.12..1.14...10.11..8..9.14....2..3..0..9..8...10..5.12..9..8
.11..8..3..2.13....1..0..5..6..3....7.10..5.12.13...11..2..1.14.13
..0..5..6..9..4...12.13..2..7..4....6..1.14.11..4....0..7..6..3..4

Crossrefs

Cf. A263389.

Sequence in context: A271335 A233253 A134374 * A159423 A271336 A196885

Adjacent sequences: A263385 A263386 A263387 * A263389 A263390 A263391

Keyword

nonn

Author

R. H. Hardin, Oct 16 2015

Status

approved