A299851 Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

64, 3440, 21764, 175258, 1620056, 14789406, 133388471, 1204666013, 10910971094, 98842226678, 895355892034, 8112618918602, 73508846667840, 666052360196248, 6035187521666990, 54686653824313606, 495532598599441224

Offset

1,1

Comments

Column 7 of A299852.

Links

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

Example

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

Crossrefs

Cf. A299852.

Sequence in context: A298194 A299088 A299344 * A299007 A299674 A299752

Adjacent sequences: A299848 A299849 A299850 * A299852 A299853 A299854

Keyword

nonn

Author

R. H. Hardin, Feb 20 2018

Status

approved