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A266134 Number of 4Xn integer arrays with each element equal to the number of horizontal, diagonal and antidiagonal neighbors exactly one smaller than itself. 1
1, 61, 385, 572, 3851, 44623, 347576, 1650710, 12360130, 106235031, 807578953, 5406175833, 41246496374, 328408364493, 2509089355110, 18435763834038, 141054581587168, 1100340622468942, 8442342552511565, 63751061176641632 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 4 of A266131.

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A266131.

Sequence in context: A189174 A304062 A305454 * A305019 A316683 A264845

Adjacent sequences:  A266131 A266132 A266133 * A266135 A266136 A266137

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 21 2015

STATUS

approved

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Last modified December 8 03:17 EST 2021. Contains 349590 sequences. (Running on oeis4.)