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A153549
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Number of planar n X n X n binary triangular grids with no more than 2 ones in any similarly oriented 2 X 2 X 2 subtriangle.
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0
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1, 2, 7, 45, 523, 11039, 422661, 29363700, 3701326718, 846522284413, 351279112544918, 264484064187115475, 361309917557640153256, 895557464235637917670130, 4027543439600489230428646003
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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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