A298460 Number of nX7 0..1 arrays with every element equal to 2, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.

0, 104, 3490, 158594, 10408388, 628485305, 39291988976, 2452094749578, 153330900615477, 9596145600115920, 600655609880996664, 37603455857635324646, 2354220701177190634835, 147393065029642108781762

Offset

1,2

Comments

Column 7 of A298461.

Links

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

Example

Some solutions for n=4
..0..1..1..1..1..1..1. .0..0..0..1..1..0..0. .0..0..0..0..0..1..1
..0..0..1..1..1..1..1. .0..0..0..1..1..1..0. .0..1..1..1..0..0..1
..1..0..0..1..0..0..1. .0..1..1..0..1..1..1. .0..0..1..0..0..0..1
..1..1..1..1..0..1..1. .1..1..0..0..0..1..1. .0..1..1..1..0..1..1

Crossrefs

Cf. A298461.

Sequence in context: A250684 A299601 A217773 * A299553 A187530 A185741

Adjacent sequences: A298457 A298458 A298459 * A298461 A298462 A298463

Keyword

nonn

Author

R. H. Hardin, Jan 19 2018

Status

approved