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A056344
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Number of bracelets using exactly four different colored beads.
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2
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0, 0, 0, 3, 24, 136, 612, 2619, 10480, 41388, 159780, 614058, 2341920, 8919816, 33905188, 128907279, 490213680, 1866127840, 7111777860, 27140369148, 103721218000, 396974781456, 1521577377012, 5840547488954
(list; graph; refs; listen; history; internal format)
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