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A154092
Number of planar triangular n X n X n nonnegative integer grids symmetric both under 120 degree rotation and reflection with every similarly oriented 5 X 5 X 5 subtriangle summing to 14.
0
0, 57, 131, 0, 53, 116, 0, 24, 52, 0, 2, 15, 0, 0, 11, 0, 0, 7, 0, 0, 6, 0, 0, 4
OFFSET
5,2
CROSSREFS
Sequence in context: A044625 A304841 A240759 * A118152 A020186 A063316
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 04 2009
STATUS
approved