|
|
A146300
|
|
Number of n X n arrays of squares of integers summing to 9 with every element equal to at least one neighbor.
|
|
1
|
|
|
0, 1, 1640, 123744, 1546356, 9282128, 37896264, 121782952, 331901924, 801191922, 1761200680, 3592793804, 6894127812, 12569395174
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
2,3
|
|
LINKS
|
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|