|
| |
|
|
A233238
|
|
Number of nX7 0..5 arrays with no element x(i,j) adjacent to value 5-x(i,j) horizontally, diagonally or antidiagonally, top left element zero, and 1 appearing before 2 3 and 4, and 2 appearing before 3 in row major order
|
|
1
|
|
|
|
2136, 25622596, 347931872810, 4737126288340919, 64509967001742933388, 878515500504975619593232, 11963921132630138069523033663, 162928803282037857377835121784933, 2218820778125412343542517310100092932
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,1
|
|
|
COMMENTS
|
|
|
|
LINKS
|
|
|
|
EXAMPLE
|
Some solutions for n=2
..0..0..0..1..5..1..5....0..0..0..1..5..5..1....0..0..0..1..5..2..4
..0..0..1..2..2..1..5....0..0..2..2..5..5..4....0..0..0..1..0..3..5
|
|
|
CROSSREFS
|
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
|
|
|
STATUS
|
approved
|
| |
|
|
