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A120445
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Number of different convex inscribed polygons with n pair of sides of lengths d1, d2, ..., dn; di =/= dj if i=/=j. Or number of necklaces with n pairs of beads, each pair of one among n colors.
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0
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1, 2, 11, 171, 5736, 312240, 24327000, 2554072920, 347351195520, 59397023589120, 12473374574505600, 3155763762320400000, 946729128624509260800, 332301924146113021900800, 134914581203304233287756800
(list; graph; refs; listen; history; internal format)
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