|
|
A233729
|
|
Number of (n+1)X(4+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 6 and no adjacent elements equal
|
|
1
|
|
|
2104, 21432, 233432, 2723072, 32240288, 389230764, 4696134192, 57174669348, 693181060760, 8455863542400, 102666251086924, 1252787231370072, 15219081421614496, 185695021438104644, 2256549296014445884
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
FORMULA
|
Empirical recurrence of order 84 (see link above)
|
|
EXAMPLE
|
Some solutions for n=2
..0..1..3..1..2....2..0..2..0..2....2..0..1..2..0....2..0..3..1..3
..2..3..2..0..3....3..2..1..2..1....3..2..0..3..2....0..1..2..0..2
..0..1..0..1..2....2..0..2..0..2....1..3..1..2..0....2..0..3..2..1
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|