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A265869 Number of nX4 arrays of permutations of 4 copies of 0..n-1 with no element plus any antidiagonal neighbor equal to n-1. 0
1, 6, 3136, 3965392, 21193260208, 187225073253120, 4173639524545757568, 132528239245373078204160 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 4 of A265870.
LINKS
EXAMPLE
Some solutions for n=3
..1..2..0..0....0..2..2..0....1..1..0..1....1..2..0..1....1..1..2..0
..1..1..0..2....1..1..0..2....0..0..2..2....2..1..0..0....2..2..0..0
..0..1..2..2....2..1..1..0....1..2..2..0....2..0..1..2....2..0..1..1
CROSSREFS
Cf. A265870.
Sequence in context: A187083 A114184 A093884 * A274083 A079183 A030245
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 17 2015
STATUS
approved

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Last modified May 26 20:29 EDT 2024. Contains 372844 sequences. (Running on oeis4.)