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A266036 Number of 4Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors less than itself. 1
1, 263, 4659, 118489, 8260441, 408513208, 18310081145, 893274482801, 43871509629713, 2125306114047014, 103023996018095153, 5001737585430438515, 242795570513177880054, 11784713223275028672523, 571987904595320449315439 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 4 of A266033.

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A266033.

Sequence in context: A239685 A108823 A229480 * A157828 A065570 A345586

Adjacent sequences:  A266033 A266034 A266035 * A266037 A266038 A266039

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 20 2015

STATUS

approved

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Last modified May 20 04:41 EDT 2022. Contains 353851 sequences. (Running on oeis4.)