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A159216
Number of n X n arrays of squares of integers with every 3X3 subblock summing to 16
0
3987, 44515, 258851, 1068723, 5651975, 23091787, 83929023, 401708875, 1644515111, 6321665907
OFFSET
3,1
CROSSREFS
Sequence in context: A203190 A229382 A159218 * A236492 A236487 A235434
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 06 2009
STATUS
approved