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A166208
Number of nXnXn triangular nonnegative integer arrays, symmetric under 120 degree rotation, with all sums of an element and its neighbors <= 13.
1
1, 14, 5, 21, 616, 3614, 65576, 6508702, 119636627, 10193915255, 4710009299519
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OFFSET
0,2
LINKS
Table of n, a(n) for n=0..10.
CROSSREFS
Sequence in context:
A180848
A331482
A068609
*
A367327
A239863
A294899
Adjacent sequences:
A166205
A166206
A166207
*
A166209
A166210
A166211
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Oct 09 2009
STATUS
approved
