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A146199
Number of n X n arrays of squares of integers with every (n2) X (n2) subblock summing to 6 and every element equal to at least one neighbor.
1
0, 98, 34778, 290306, 1182610, 3573766, 9017466, 20075266, 40694834, 76649830, 136042186, 229866786, 372638546, 583081894, 884882650, 1307502306, 1887054706, 2667245126
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OFFSET
4,2
LINKS
Table of n, a(n) for n=4..21.
CROSSREFS
Sequence in context:
A181553
A251914
A277658
*
A159381
A295191
A295184
Adjacent sequences:
A146196
A146197
A146198
*
A146200
A146201
A146202
KEYWORD
nonn
AUTHOR
R. H. Hardin
Apr 14 2009
STATUS
approved
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Last modified February 27 14:25 EST 2024. Contains 370375 sequences. (Running on oeis4.)