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A153557
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Number of planar n X n X n binary triangular grids with no more than 3 ones in any similarly oriented 4 X 4 X 4 subtriangle.
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0
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1, 2, 8, 42, 176, 1746, 27983, 630889, 18492283, 877780369, 63669637114, 6801320086494, 1063331866929514, 250365248652172910
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listen;
history;
text;
internal format)
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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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