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A068247
1/6 the number of colorings of a 6x6 rhombic hexagonal array with n colors.
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1, 123273728, 606966551329230, 42294602754348892160, 221621345837018832499375
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Maintained by
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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.
AT&T Labs Research
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