|
|
A269934
|
|
Number of nX4 0..6 arrays with some element plus some horizontally, diagonally, antidiagonally or vertically adjacent neighbor totalling six exactly once.
|
|
1
|
|
|
756, 1213836, 755009274, 399002850360, 193171242190020, 88942337408262936, 39591200828582988102, 17206536333078160595304, 7344924168583134203517654, 3091899703680951440763165408, 1287126422247369227744582964456
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
FORMULA
|
Empirical recurrence of order 64 (see link above)
|
|
EXAMPLE
|
Some solutions for n=1
..2..4..5..3. .1..6..2..4. .2..3..6..0. .3..1..5..4. .5..0..5..1
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|