login
A302426
Number of nX7 0..1 arrays with every element equal to 0, 1, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
21, 185, 188, 532, 4223, 14764, 48037, 227283, 940829, 3489620, 14387459, 59418248, 233645986, 941269019, 3823009297, 15290825815, 61530089164, 248256753643, 996694292892, 4011733223504, 16159420719685, 64946192160119
OFFSET
1,1
COMMENTS
Column 7 of A302427.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..0..0..1..1. .0..0..1..0..1..0..1. .0..1..0..0..1..1..0
..1..0..0..0..1..0..1. .1..1..1..0..1..0..0. .0..1..1..1..1..1..1
..1..0..1..0..1..0..1. .1..0..1..0..1..0..1. .1..1..1..1..1..1..1
..1..0..1..0..1..1..1. .1..0..0..0..1..0..1. .0..1..0..0..1..1..0
..1..1..0..0..1..0..0. .0..1..0..0..0..1..1. .0..0..1..0..1..0..1
CROSSREFS
Cf. A302427.
Sequence in context: A232045 A302162 A302634 * A303196 A274655 A274653
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 07 2018
STATUS
approved