A299947 Number of n X 7 0..1 arrays with every element equal to 0, 1, 2, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

64, 301, 137, 952, 4924, 19269, 116051, 642696, 3313121, 19431636, 109795406, 592849148, 3399315271, 19264726916, 105918199897, 600490288656, 3398611439536, 18863937917408, 106352314369227, 600681055187239

Offset

1,1

Comments

Column 7 of A299948.

Links

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

Example

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

Crossrefs

Cf. A299948.

Sequence in context: A298293 A299387 A299186 * A251196 A221486 A231942

Adjacent sequences: A299944 A299945 A299946 * A299948 A299949 A299950

Keyword

nonn

Author

R. H. Hardin, Feb 22 2018

Status

approved