A303195 Number of nX6 0..1 arrays with every element equal to 0, 1, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

13, 65, 105, 283, 2106, 8250, 32223, 159440, 703465, 2973340, 13494853, 60180498, 262407902, 1167392813, 5190322216, 22874608873, 101334971043, 449454168985, 1987423197338, 8798329818980, 38980239305306, 172530975264447

Offset

1,1

Comments

Column 6 of A303197.

Links

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

Example

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

Crossrefs

Cf. A303197.

Sequence in context: A302161 A302633 A302425 * A283169 A010820 A022705

Adjacent sequences: A303192 A303193 A303194 * A303196 A303197 A303198

Keyword

nonn

Author

R. H. Hardin, Apr 19 2018

Status

approved