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A159212
Number of n X n arrays of squares of integers with every 3X3 subblock summing to 12.
0
1857, 18113, 98081, 384609, 1934237, 7541249, 26058765, 119683865, 465264653, 1694090505, 7898979629
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OFFSET
3,1
LINKS
Table of n, a(n) for n=3..13.
CROSSREFS
Sequence in context:
A051355
A064978
A202913
*
A120809
A213868
A022062
Adjacent sequences:
A159209
A159210
A159211
*
A159213
A159214
A159215
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Apr 06 2009
STATUS
approved