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A153522
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Number of planar n X n X n binary triangular grids with no more than 2 ones in any 2 X 2 X 2 subtriangle.
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0
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1, 2, 7, 44, 487, 9548, 330644, 20241284, 2189838823, 418717329192, 141498666489433, 84510319691113604, 89205606502160918487, 166417820194039911511676, 548697154280844534323051836
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OFFSET
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0,2
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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