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A154046
Number of planar triangular n X n X n nonnegative integer grids symmetric under 120 degree rotation with every similarly oriented 4 X 4 X 4 subtriangle summing to 5.
+0
1
4, 14, 23, 19, 11, 38, 9, 12, 11, 4, 7, 10, 7, 4, 7, 10, 7, 4, 7, 10, 7, 4, 7, 10, 7, 4, 7, 10, 7, 4, 7, 10, 7, 4, 7, 10, 7, 4, 7, 10, 7, 4, 7, 10, 7, 4, 7, 10, 7, 4, 7, 10, 7, 4, 7, 10, 7
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.
AT&T Labs Research
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