A302321 - OEIS

A302321

Number of nX7 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

64, 960, 4509, 55727, 529381, 4521584, 45861206, 444688101, 4176914829, 40809262060, 395654711075, 3811906778065, 37003644433919, 358647770159776, 3475163995822613, 33712933618938830, 326851938344178738

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OFFSET

1,1

COMMENTS

Column 7 of A302322.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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