A298144 Number of nX6 0..1 arrays with every element equal to 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero.

0, 5, 6, 27, 57, 92, 161, 369, 918, 2023, 4177, 9191, 20759, 46792, 104465, 235137, 529925, 1193122, 2683847, 6045698, 13629713, 30735537, 69313806, 156362148, 352814464, 796207260, 1796997548, 4056249123, 9156943844, 20673527694

Offset

1,2

Comments

Column 6 of A298146.

Links

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

R. H. Hardin, Empirical recurrence of order 99

Formula

Empirical recurrence of order 99 (see link above)

Example

Some solutions for n=7
..0..0..1..0..1..1. .0..0..1..0..1..1. .0..0..1..1..1..1. .0..0..1..0..0..0
..0..1..1..0..0..1. .0..1..0..1..0..1. .0..1..1..0..0..1. .0..1..0..1..0..1
..1..0..0..1..1..0. .0..1..0..1..0..0. .1..0..0..0..1..0. .1..1..0..1..1..1
..0..1..1..0..0..1. .0..1..0..1..1..0. .0..1..1..1..1..0. .0..1..0..1..0..1
..1..0..0..1..1..0. .0..1..0..0..0..1. .0..1..0..0..0..1. .0..0..0..1..0..0
..0..1..1..0..0..1. .1..0..1..1..1..0. .0..1..0..1..1..0. .0..1..0..1..0..1
..0..0..1..0..1..1. .1..1..0..0..0..0. .0..0..1..1..0..0. .1..1..1..0..1..1

Crossrefs

Cf. A298146.

Sequence in context: A320665 A303731 A298175 * A115761 A320047 A249221

Adjacent sequences: A298141 A298142 A298143 * A298145 A298146 A298147

Keyword

nonn

Author

R. H. Hardin, Jan 13 2018

Status

approved