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A263818 Number of (2+1)X(n+1) arrays of permutations of 0..n*3+2 with each element having index change (+-,+-) 0,0 0,1 0,2 or 1,0 1
32, 948, 18776, 333429, 6425985, 124854432, 2392853088, 45898515536, 882504683737, 16961728977667, 325906704633704, 6262921821080860, 120359817883976272, 2313001901843303293, 44449848853940930817 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 2 of A263816

LINKS

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

EXAMPLE

Some solutions for n=3

..2..3..0..1....0..1..2..7....1..3..6..7....1..3..6..2....2..0..1..3

..6..7..5.11....4..5.10..3....0..5..2.11....0..9..7..5....4..6..7..5

..4..9..8.10....8.11..6..9....4.10..8..9....4.11..8.10....8.10..9.11

CROSSREFS

Cf. A263816

Sequence in context: A283412 A227441 A067820 * A220743 A115612 A281342

Adjacent sequences:  A263815 A263816 A263817 * A263819 A263820 A263821

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 27 2015

STATUS

approved

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Last modified August 17 22:43 EDT 2022. Contains 356195 sequences. (Running on oeis4.)