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A265372 Number of nX4 arrays of permutations of 4 copies of 0..n-1 with no equal horizontal, vertical or antidiagonal neighbors and new values introduced sequentially from 0. 0
0, 0, 1, 236, 363850, 860077644, 3040856393843, 15614173687644042 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

Column 4 of A265373.

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

Some solutions for n=4

..0..1..2..0....0..1..2..3....0..1..0..2....0..1..2..1....0..1..2..1

..2..0..1..3....2..3..0..1....3..2..1..3....2..0..3..0....3..0..3..2

..3..2..0..2....0..1..3..0....1..3..0..2....3..2..1..2....1..2..0..1

..1..3..1..3....3..2..1..2....2..1..3..0....1..3..0..3....0..3..2..3

CROSSREFS

Cf. A265373.

Sequence in context: A233243 A233200 A233221 * A252718 A036270 A217030

Adjacent sequences:  A265369 A265370 A265371 * A265373 A265374 A265375

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 07 2015

STATUS

approved

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Last modified January 16 16:32 EST 2022. Contains 350376 sequences. (Running on oeis4.)