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A166184
Number of nXnXn triangular nonnegative integer arrays with all sums of an element and its neighbors <= 12
0
1, 13, 455, 23464, 11477240, 20485423871, 106493297313816
OFFSET
0,2
CROSSREFS
Sequence in context: A218586 A251601 A338177 * A272656 A081862 A198012
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 09 2009
STATUS
approved