|
|
A301613
|
|
Number of nX6 0..1 arrays with every element equal to 1, 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.
|
|
1
|
|
|
5, 361, 12467, 421025, 14345706, 488491106, 16632517333, 566336198475, 19283659583317, 656605634861657, 22357328417975688, 761263743052450453, 25920919868772588676, 882603544282198427622, 30052522164474593294535
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=5
..0..0..1..1..1..0. .0..0..1..1..1..1. .0..0..0..1..1..1. .0..0..0..1..1..0
..0..0..1..0..0..0. .0..0..1..1..0..0. .0..0..1..1..0..1. .0..0..1..0..0..0
..0..0..0..1..1..0. .0..0..1..0..1..1. .0..0..1..1..0..1. .0..0..1..1..0..0
..0..1..1..1..0..1. .0..1..1..0..1..1. .0..1..0..0..1..1. .0..0..1..0..0..1
..0..0..1..0..0..1. .0..0..1..1..1..1. .0..1..1..0..0..0. .0..0..0..1..1..1
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|