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A180371
1/8 the number of triangular nXnXn arrays of integers in 1..8 with no element or any of its neighbors having the same value
0
1, 42, 2520, 136080, 6531840, 314616960
OFFSET
1,2
CROSSREFS
Sequence in context: A258393 A187365 A294978 * A046198 A361371 A214580
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 01 2010
STATUS
approved