|
|
A251912
|
|
T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 2 or 7
|
|
3
|
|
|
49436, 950384, 950384, 18245824, 34096384, 18245824, 351040004, 1228480800, 1228480800, 351040004, 6755376172, 44527823912, 83861378128, 44527823912, 6755376172, 130017259448, 1618348274612, 5801103610852, 5801103610852
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
Table starts
........49436........950384......18245824.....351040004......6755376172
.......950384......34096384....1228480800...44527823912...1618348274612
.....18245824....1228480800...83861378128.5801103610852.405066257896888
....351040004...44527823912.5801103610852
...6755376172.1618348274612
.130017259448
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=1 k=4
..0..0..0..0..3..3....0..0..0..0..3..3....0..0..3..3..0..0....0..0..1..0..3..3
..0..0..0..3..0..3....0..0..0..3..2..1....0..0..0..0..1..2....0..0..0..1..2..0
..0..0..0..3..0..3....0..1..0..3..1..1....0..1..0..3..2..1....0..3..0..3..1..1
|
|
CROSSREFS
|
|
|
KEYWORD
|
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|