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A166195 Number of 9X9X9 triangular nonnegative integer arrays with all sums of an element and its neighbors <= n 0
1, 57523, 509035046, 1004833436277, 654788462119153 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

CROSSREFS

Sequence in context: A206758 A019290 A069335 * A031861 A119887 A188256

Adjacent sequences:  A166192 A166193 A166194 * A166196 A166197 A166198

KEYWORD

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net) Oct 09 2009

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Last modified February 14 23:53 EST 2012. Contains 205689 sequences.