|
|
A272971
|
|
Number of nX6 0..1 arrays with exactly n+6-2 having value 1 and no three 1s forming an isosceles triangle.
|
|
0
|
|
|
6, 28, 36, 37, 4, 8, 4, 22, 0, 34, 32, 203, 28
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=3
..0..1..0..1..1..0. .1..0..1..1..1..0. .0..0..0..0..0..1. .1..1..0..0..0..1
..1..0..0..0..0..1. .1..0..0..0..0..1. .1..0..0..0..0..1. .0..0..0..0..0..0
..1..0..0..0..0..1. .0..0..0..0..0..1. .1..0..1..1..1..0. .0..1..1..0..1..1
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|