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A300938 Number of n X n 0..1 arrays with every element equal to 0, 1, 3, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 0
1, 3, 5, 38, 248, 3873, 99717, 5562548, 556497081, 107105438462 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A300944.

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A300944.

Sequence in context: A337858 A337859 A184314 * A336787 A183258 A077779

Adjacent sequences:  A300935 A300936 A300937 * A300939 A300940 A300941

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 16 2018

STATUS

approved

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Last modified November 29 14:46 EST 2020. Contains 338769 sequences. (Running on oeis4.)