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Search: id:A154077
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| A154077 |
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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 10. |
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1
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| 20, 87, 176, 369, 327, 477, 649, 644, 519, 410, 420, 461
(list; graph; listen)
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