A298062 Number of nX7 0..1 arrays with every element equal to 1, 3, 4 or 6 king-move adjacent elements, with upper left element zero.

0, 125, 22, 104, 1959, 1753, 11025, 108798, 282635, 2229412, 15477540, 74054276, 567842984, 3716832957, 21775443235, 159211406028, 1048524538430, 6555282942655, 46359541407722, 308481819673577, 1979136541518093

Offset

1,2

Comments

Column 7 of A298063.

Links

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

Example

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

Crossrefs

Cf. A298063.

Sequence in context: A005080 A174733 A100579 * A298711 A088403 A077495

Adjacent sequences: A298059 A298060 A298061 * A298063 A298064 A298065

Keyword

nonn

Author

R. H. Hardin, Jan 11 2018

Status

approved