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A124177
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Consider the map f that sends n to n + (sum of even digits of n) - (sum of odd digits of n). Sequences gives numbers n such that f^(k))n) = n for some k.
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13
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0, 22, 26, 27, 34, 35, 44, 49, 52, 63, 66, 78, 79, 81, 88, 99, 104, 107, 108, 112, 115, 121, 126, 133, 134, 143, 144, 151, 156, 165, 178, 187, 211, 224, 229, 232, 233, 283, 290, 314, 336, 341, 358, 363, 385, 413, 431, 467, 470, 489, 492, 516, 538, 561, 583, 615
(list; graph; refs; listen; history; internal format)
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