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A326099 Number of nXn 0..1 arrays with every element equal to 0, 1, 2, 3 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 0
1, 8, 161, 8628, 1233763, 463572941, 457515856087, 1187662505828132, 8109848158608706092, 145652282125715208618002, 6879822326742091298103753274 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A326105.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A326105.

Sequence in context: A140337 A245322 A305524 * A171461 A065116 A240410

Adjacent sequences:  A326096 A326097 A326098 * A326100 A326101 A326102

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 06 2019

STATUS

approved

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Last modified July 17 16:38 EDT 2019. Contains 325107 sequences. (Running on oeis4.)