|
|
A239401
|
|
Number of nX4 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of elements above it, modulo 4
|
|
1
|
|
|
16, 478, 13977, 394509, 11334364, 326882784, 9402398952, 270516990628, 7789048968124, 224284362847360, 6457977012007180, 185957590016422087, 5354807669541831222, 154196812648221842975, 4440254588265618959278
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=3
..3..3..1..1....3..1..3..3....3..1..3..3....0..0..3..1....3..1..0..0
..2..0..0..2....0..0..3..3....2..1..2..0....3..1..2..1....0..0..0..0
..2..0..2..2....2..1..1..3....0..3..1..0....2..2..2..2....2..2..3..1
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|