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A300940 Number of nX4 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. 1
5, 3, 12, 38, 75, 186, 530, 1401, 3811, 10666, 29764, 85074, 243478, 700526, 2028715, 5890335, 17145198, 50000931, 145968525, 426553602, 1247498091, 3650210391, 10684555961, 31283438794, 91612270064, 268323435201, 785979716062 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A300944.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A300944.

Sequence in context: A130180 A245288 A104587 * A131939 A205522 A111744

Adjacent sequences:  A300937 A300938 A300939 * A300941 A300942 A300943

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 16 2018

STATUS

approved

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Last modified December 3 20:56 EST 2020. Contains 338920 sequences. (Running on oeis4.)