A298092 Number of nX7 0..1 arrays with every element equal to 1, 2, 4 or 7 king-move adjacent elements, with upper left element zero.

8, 95, 53, 149, 150, 203, 229, 365, 410, 734, 917, 1484, 2077, 2943, 4659, 7326, 10594, 16709, 24739, 37132, 60254, 95030, 143625, 222697, 342265, 533190, 851163, 1336970, 2070432, 3224282, 5018051, 7927851, 12585422, 19740586, 30869728

Offset

1,1

Comments

Column 7 of A298093.

Links

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

Example

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

Crossrefs

Cf. A298093.

Sequence in context: A299669 A080208 A297857 * A298054 A298887 A298659

Adjacent sequences: A298089 A298090 A298091 * A298093 A298094 A298095

Keyword

nonn

Author

R. H. Hardin, Jan 12 2018

Status

approved