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Search: id:A102280
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| A102280 |
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Let k = n-th number == 1 or 5 mod 6 (A007310(n)); consider the generalized 3x+1 map T_k defined by T_k(n) = (3n+k)/2 if n odd, n/2 if n even; then a(n) = smallest positive number m which is in a primitive cycle of T_k. |
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| 1, 1, 5, 1, 1, 1, 5, 5, 7, 1, 13, 7, 19, 1, 1, 5, 25, 103, 1, 1, 1, 19, 17, 29, 19, 1, 1, 65, 7, 17, 1, 1, 1, 7, 5, 1, 19, 1, 13, 1, 5, 1, 1, 13, 11, 1, 11
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