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A145013
One quarter of the number of n X n nonnegative integer arrays with every 2 X 2 subblock summing to 3.
0
5, 26, 79, 293, 779, 2555, 6475, 20111, 50195, 151991
OFFSET
2,1
CROSSREFS
Sequence in context: A081530 A254831 A360350 * A096943 A166810 A210367
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 29 2008
EXTENSIONS
Changed positive to nonnegative, added n X n. - R. H. Hardin, Sep 30 2008
STATUS
approved