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A263585
Number of (n+1)X(4+1) arrays of permutations of 0..n*5+4 filled by rows with each element moved a city block distance of 1 or 2, and rows and columns in increasing lexicographic order.
0
31, 27650, 8296414, 3822509358, 1954083613268, 950842128976830, 464444435832491663, 229893908518453257427
OFFSET
1,1
COMMENTS
Column 4 of A263586.
EXAMPLE
Some solutions for n=2
..2..3..4..7.14....1..2..3..4.14....5..6..8.13.14....5..6.12.13.14
.10..0..5..6.13....7..0..5.13..8...10..0..1..3..4...10..0..8..9..3
.11..1..8.12..9...11.10..6..9.12...11..7..2..9.12...11..1..2..7..4
CROSSREFS
Cf. A263586.
Sequence in context: A292009 A086122 A239167 * A176349 A262716 A033176
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 22 2015
STATUS
approved