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A266058 Number of 4Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors less than or equal to itself. 1
1, 176, 54, 4203, 624720, 14337385, 454759923, 21604580859, 889621457229, 33237230186321, 1314156961424515, 52670841452643068, 2069568617113158340, 81449577335786082237, 3221788440314018526529, 127237760114049369621749 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 4 of A266055.

LINKS

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

EXAMPLE

Some solutions for n=4

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

..0..2..4..0....1..2..3..1....2..2..4..0....2..1..4..0....2..1..4..1

..2..0..4..0....0..4..1..2....0..4..2..2....0..4..3..1....1..4..0..1

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

CROSSREFS

Cf. A266055.

Sequence in context: A212946 A172685 A344280 * A261678 A136603 A114824

Adjacent sequences:  A266055 A266056 A266057 * A266059 A266060 A266061

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 20 2015

STATUS

approved

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Last modified December 7 06:09 EST 2021. Contains 349567 sequences. (Running on oeis4.)