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A038870
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Triangle read by rows: T(n,k) = number of orbits of order exactly k under doubling map which remain in a semicircle, with k dividing n.
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1
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0, 1, 1, 3, 1, 7, 1, 5, 11, 15, 1, 31, 1, 9, 21, 43, 55, 63, 1, 37, 91, 127, 1, 17, 85, 171, 239, 255, 1, 73, 439, 511, 1, 33, 137, 293, 341, 683, 731, 887, 991, 1023, 1, 661, 1387, 2047, 1, 65, 273, 585, 1189, 1365, 2731, 2907, 3511, 3823, 4031, 4095, 1
(list; graph; refs; listen; history; internal format)
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