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A265872 Number of 4Xn arrays containing n copies of 0..4-1 with no element plus any antidiagonal neighbor equal to 4-1. 1
24, 984, 56496, 3965392, 307543008, 25346247472, 2177808505472, 192906735661528, 17489278188423296, 1614969746814390896, 151358790056680049792, 14360889227707270019712, 1376684210617781240317184 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 4 of A265870.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..33

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Cf. A265870.

Sequence in context: A254619 A006175 A058810 * A223147 A272551 A222933

Adjacent sequences:  A265869 A265870 A265871 * A265873 A265874 A265875

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 17 2015

STATUS

approved

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Last modified May 30 12:03 EDT 2020. Contains 334724 sequences. (Running on oeis4.)