A300810 Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

64, 5536, 205369, 8363710, 343667594, 14189038853, 585611214958, 24166702223161, 997271941003944, 41155002052053688, 1698364186084410971, 70087264998653292977, 2892325757357593824036, 119359046546325613534455

Offset

1,1

Comments

Column 7 of A300811.

Links

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

Example

Some solutions for n=5
..0..0..0..1..0..0..1. .0..0..0..1..1..0..0. .0..0..0..1..1..0..1
..0..1..0..0..1..0..0. .0..1..0..1..0..1..1. .0..1..0..1..1..0..1
..0..0..1..0..1..1..0. .0..0..0..1..1..1..0. .0..0..0..0..1..0..1
..0..1..0..0..1..1..0. .0..0..1..0..0..0..1. .0..0..0..0..0..1..0
..0..0..1..0..0..0..1. .1..1..0..1..1..1..0. .1..0..1..1..0..1..1

Crossrefs

Cf. A300811.

Sequence in context: A283491 A300471 A326104 * A301449 A265616 A321207

Adjacent sequences: A300807 A300808 A300809 * A300811 A300812 A300813

Keyword

nonn

Author

R. H. Hardin, Mar 13 2018

Status

approved