|
| |
|
|
A145012
|
|
Half the number of n X n nonnegative integer arrays with every 2 X 2 subblock summing to 2.
|
|
0
|
|
|
|
5, 17, 37, 95, 185, 431, 805, 1799, 3305, 7247, 13237, 28775, 52505, 113711
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
2,1
|
|
|
LINKS
|
|
|
|
CROSSREFS
|
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
|
|
|
EXTENSIONS
|
Changed positive (programmer's definition) to nonnegative (mathematician's definition), added n X n. - R. H. Hardin, Sep 30 2008
|
|
|
STATUS
|
approved
|
| |
|
|
