A303044 Number of 6Xn 0..1 arrays with every element equal to 0, 1, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

32, 42, 186, 544, 2494, 13597, 59654, 251705, 1186522, 5869222, 27381443, 126165687, 604239638, 2948606295, 14144665365, 67469024030, 326726182958, 1595597953024, 7746571268500, 37522290645262, 182886057727441

Offset

1,1

Comments

Row 6 of A303040.

Links

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

Example

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

Crossrefs

Cf. A303040.

Sequence in context: A302431 A303201 A302314 * A302881 A303529 A167528

Adjacent sequences: A303041 A303042 A303043 * A303045 A303046 A303047

Keyword

nonn

Author

R. H. Hardin, Apr 17 2018

Status

approved