|
| |
|
|
A196634
|
|
Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 1,3,2,0,4 for x=0,1,2,3,4
|
|
1
|
|
|
|
1, 65, 780, 10708, 152925, 2140040, 29718190, 415475619, 5791281872, 80883758124, 1128675587447, 15753191583307, 219869040473415, 3068688709980912, 42829911529529182, 597780110150837643, 8343266217471860095
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,2
|
|
|
COMMENTS
|
Every 0 is next to 0 1's, every 1 is next to 1 3's, every 2 is next to 2 2's, every 3 is next to 3 0's, every 4 is next to 4 4's
Column 6 of A196636
|
|
|
LINKS
|
R. H. Hardin, Table of n, a(n) for n = 1..200
|
|
|
EXAMPLE
|
Some solutions for n=4
..0..0..0..0..0..0....0..0..0..3..0..0....0..0..3..0..2..2....0..3..0..2..2..0
..0..3..3..0..0..0....0..0..0..0..0..0....0..3..0..0..2..2....3..0..3..2..2..0
..3..0..0..3..3..0....0..0..0..3..3..0....2..2..3..0..0..0....0..0..0..3..0..3
..0..0..3..0..0..0....0..0..0..0..0..0....2..2..0..0..3..0....0..0..0..0..3..0
|
|
|
CROSSREFS
|
Sequence in context: A343508 A116277 A220389 * A196639 A008516 A000540
Adjacent sequences: A196631 A196632 A196633 * A196635 A196636 A196637
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
R. H. Hardin Oct 04 2011
|
|
|
STATUS
|
approved
|
| |
|
|
