|
|
A301845
|
|
Number of 5Xn 0..1 arrays with every element equal to 0, 1 or 2 horizontally or antidiagonally adjacent elements, with upper left element zero.
|
|
1
|
|
|
16, 512, 4299, 48802, 496085, 5240684, 54948498, 577194574, 6070236888, 63855283956, 671950959732, 7071734560895, 74426242914307, 783303529316947, 8243938456863301, 86764009232555716, 913155201853131784
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
FORMULA
|
Empirical recurrence of order 99 (see link above)
|
|
EXAMPLE
|
Some solutions for n=5
..0..0..0..1..1. .0..0..0..1..1. .0..0..0..0..1. .0..0..0..1..0
..1..1..0..0..1. .1..0..1..0..1. .1..1..0..1..1. .1..1..0..1..0
..1..1..1..0..1. .1..0..1..0..0. .0..1..0..1..1. .0..1..0..1..0
..0..1..0..1..0. .0..0..1..1..0. .0..1..0..1..0. .1..0..1..1..0
..0..1..0..1..1. .0..1..0..1..1. .0..1..1..0..1. .1..0..0..1..0
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|