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A145055
One-third of the number of n X n nonnegative integer arrays with every 3 X 3 subblock summing to 4.
0
165, 2401, 13757, 48057, 345885, 1519377
OFFSET
3,1
CROSSREFS
Sequence in context: A066177 A184490 A027796 * A194483 A105944 A071576
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 30 2008
STATUS
approved