|
|
A253981
|
|
Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal maximum nondecreasing horizontally and vertically
|
|
1
|
|
|
136868, 4858102, 179261149, 6386040127, 228352636069, 8192431991746, 293237386040072, 10498927207163381, 375987905127103160, 13462875190480222837, 482069048306284629635, 17261890669111868427750
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=1
..0..1..1..1..1..1....1..1..1..1..1..1....1..1..0..0..1..1....0..1..1..1..1..0
..1..0..0..1..0..0....0..1..0..1..0..0....1..0..1..1..1..0....0..0..0..1..1..1
..0..1..1..0..1..0....1..1..0..1..0..0....0..1..0..0..0..0....0..1..0..0..0..0
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|