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A263508 Number of (2+1)X(n+1) arrays of permutations of 0..n*3+2 filled by rows with each element moved a city block distance of 0 1 or 2, and rows and columns in increasing lexicographic order. 1
59, 2282, 54924, 1111442, 20380008, 337841109, 5207863310, 75977562458, 1061547321219, 14333939101168, 188384704889515, 2422837596982624, 30621846746565687, 381598737516945031, 4701011865361444793 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 2 of A263506.

LINKS

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

EXAMPLE

Some solutions for n=3

..0..4..7.11....1..2.10.11....0..1..3..6....0..1..6..7....0..2..3..7

..1..5..3..2....5..0..4..3....4.10..7.11....4.10.11..5....4..5.11..6

..9..8..6.10....9..8..7..6....5..8..2..9....8..9..2..3...10..1..8..9

CROSSREFS

Cf. A263506.

Sequence in context: A134652 A017775 A017722 * A119886 A135649 A278367

Adjacent sequences:  A263505 A263506 A263507 * A263509 A263510 A263511

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 19 2015

STATUS

approved

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Last modified January 28 00:32 EST 2020. Contains 331313 sequences. (Running on oeis4.)