|
|
A196144
|
|
Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,0,4,1,2 for x=0,1,2,3,4
|
|
1
|
|
|
12, 62, 85, 346, 1031, 2599, 7486, 22292, 61689, 177057, 510032, 1448637, 4132242, 11862868, 33916712, 96889032, 277372934, 794009775, 2271276412, 6499360165, 18601549495, 53231495224, 152336019308, 435981877255, 1247751132201
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
Every 0 is next to 0 3's, every 1 is next to 1 0's, every 2 is next to 2 4's, every 3 is next to 3 1's, every 4 is next to 4 2's
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=4
.1.1.3.1.0.0...1.1.0.0.0.0...0.0.1.1.0.0...0.0.0.0.0.1
.0.0.1.1.0.0...0.1.1.1.1.1...1.1.3.3.1.1...1.1.1.1.1.1
.0.0.1.1.0.0...1.1.1.1.1.1...3.1.1.1.1.1...3.1.1.1.1.0
.0.0.1.3.1.1...1.0.0.0.0.0...1.0.0.0.0.0...1.0.0.0.1.1
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|