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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.
1
36, 17376, 2205225, 188020096, 24782315776, 3447945608640, 431369679452481, 52701991071361200, 6659057448461741764, 847742465861422866576, 106792577897071860541969, 13418361811042157528624000
OFFSET
1,1
COMMENTS
Column 4 of A263389.
LINKS
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
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 16 2015
STATUS
approved