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A265662 Number of nX4 arrays of permutations of 4 copies of 0..n-1 with no element plus any horizontal or vertical neighbor equal to n-1. 0
0, 0, 16, 34056, 234168152, 1832864246736, 53270988987457584 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
COMMENTS
Column 4 of A265663.
LINKS
EXAMPLE
Some solutions for n=4
..3..2..0..1....3..2..0..2....1..0..0..1....2..2..3..1....1..3..1..0
..3..3..2..0....2..3..1..0....3..2..2..0....2..0..2..0....1..3..3..2
..1..1..0..2....2..3..1..0....1..3..3..1....3..1..0..1....0..2..3..2
..3..1..0..2....3..1..0..1....0..2..2..3....3..3..1..0....2..0..1..0
CROSSREFS
Cf. A265663.
Sequence in context: A249971 A221244 A280656 * A253912 A017548 A265588
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 12 2015
STATUS
approved

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Last modified July 12 14:18 EDT 2024. Contains 374248 sequences. (Running on oeis4.)