A302881 Number of 6Xn 0..1 arrays with every element equal to 0, 1, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

32, 42, 209, 858, 4849, 45897, 359518, 2795440, 24612087, 229678996, 2033049729, 17595489212, 158734355515, 1457646451815, 13060861095622, 115840845731074, 1044452206802108, 9479995763726021, 85151645686087391, 761720310814435390

Offset

1,1

Comments

Row 6 of A302877.

Links

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

Example

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

Crossrefs

Cf. A302877.

Sequence in context: A303201 A302314 A303044 * A303529 A167528 A269230

Adjacent sequences: A302878 A302879 A302880 * A302882 A302883 A302884

Keyword

nonn

Author

R. H. Hardin, Apr 15 2018

Status

approved