login
A306127
Number of nX6 0..1 arrays with every element unequal to 0, 1, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.
1
13, 61, 73, 360, 1351, 4872, 21926, 106322, 512165, 2629638, 13873297, 73471599, 392491829, 2118534278, 11466963266, 62147643139, 337671074172, 1837129443591, 9999348582462, 54454828146544, 296687232238381, 1616765676240054
OFFSET
1,1
COMMENTS
Column 6 of A306129.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..0..0. .0..1..1..0..1..1. .0..1..1..0..0..0. .0..0..1..1..1..1
..1..0..0..0..0..0. .0..0..1..0..1..0. .0..0..0..0..0..0. .1..0..1..0..1..1
..1..1..0..0..1..0. .1..1..1..1..0..1. .1..1..0..0..0..0. .1..1..1..0..1..0
..1..1..1..0..1..1. .1..0..0..1..0..0. .0..1..0..1..0..0. .1..1..1..1..1..0
..1..1..1..1..1..1. .0..0..0..0..0..0. .0..0..0..1..1..0. .1..1..1..1..1..1
CROSSREFS
Cf. A306129.
Sequence in context: A359666 A217606 A002647 * A118711 A316309 A317264
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 22 2018
STATUS
approved