A300029 Number of nX7 0..1 arrays with every element equal to 0, 1, 3, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

21, 203, 129, 2466, 30072, 153289, 1841903, 19059670, 151628931, 1608282486, 15916306276, 144533905546, 1451676564506, 14214967754822, 134895783401363, 1327924864310213, 12957080978763668, 124947115339353318

Offset

1,1

Comments

Column 7 of A300030.

Links

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

Example

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

Crossrefs

Cf. A300030.

Sequence in context: A298319 A299392 A299193 * A339521 A160768 A160769

Adjacent sequences: A300026 A300027 A300028 * A300030 A300031 A300032

Keyword

nonn

Author

R. H. Hardin, Feb 23 2018

Status

approved