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A166212 Number of 4X4X4 triangular nonnegative integer arrays, symmetric under 120 degree rotation, with all sums of an element and its neighbors <= n 1
1, 3, 6, 14, 25, 39, 66, 99, 138, 201, 274, 357, 479, 616, 768, 977, 1207, 1458, 1788, 2146, 2532, 3022, 3548, 4110, 4805, 5545, 6330, 7280, 8285, 9345, 10606, 11933, 13326, 14959, 16670, 18459, 20531, 22694, 24948, 27531, 30219, 33012, 36184, 39476 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

LINKS

R. H. Hardin, Table of n, a(n) for n=0..63

CROSSREFS

Sequence in context: A056596 A026341 A026271 * A002219 A006906 A120940

Adjacent sequences:  A166209 A166210 A166211 * A166213 A166214 A166215

KEYWORD

nonn

AUTHOR

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

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Last modified February 15 12:03 EST 2012. Contains 205782 sequences.