login
A295715
Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1, 2 or 4 1s.
1
128, 10329, 786804, 61023234, 4725935539, 366212961052, 28373170135641, 2198260487199227, 170316434139541414, 13195718014328336932, 1022372882849049101482, 79211033971975236785553
OFFSET
1,1
COMMENTS
Column 7 of A295716.
LINKS
EXAMPLE
Some solutions for n=3
..0..0..0..0..0..1..0. .0..0..1..0..1..1..0. .0..1..0..0..0..1..0
..0..0..0..1..1..1..1. .0..0..1..0..0..1..0. .0..0..0..1..1..0..1
..1..1..0..0..0..1..1. .0..0..1..0..1..0..1. .0..1..0..0..0..1..1
CROSSREFS
Cf. A295716.
Sequence in context: A297373 A283697 A283129 * A282398 A297101 A181250
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 26 2017
STATUS
approved