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A295646 Number of n X n 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1, 3 or 4 1's. 0
2, 11, 184, 8391, 1117226, 426233396, 468469936974, 1481365505094176, 13481259599060854448, 353057109477250625199058, 26608269052923054935486338857 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A295652.

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

Some solutions for n=4

..0..1..0..1. .0..0..0..0. .0..0..1..0. .0..1..1..0. .0..1..0..1

..0..0..0..0. .0..0..1..0. .0..1..1..1. .0..0..0..0. .0..0..1..0

..0..1..1..0. .1..0..0..0. .0..0..1..0. .0..0..1..0. .1..0..0..0

..0..0..0..1. .1..0..0..0. .0..0..0..1. .0..1..0..0. .0..0..1..1

CROSSREFS

Cf. A295652.

Sequence in context: A288556 A295246 A288564 * A124836 A013104 A007984

Adjacent sequences:  A295643 A295644 A295645 * A295647 A295648 A295649

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 25 2017

STATUS

approved

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Last modified May 20 16:35 EDT 2022. Contains 353875 sequences. (Running on oeis4.)