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A072145
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Numbers k such that the period of the 'Reverse and Subtract' trajectory of k is greater than 14.
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1
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100000114412, 100000124422, 100000125522, 100000126622, 100000177959, 100000192292, 100000214413, 100000215513, 100000218813, 100000221123, 100000228823, 100000248843, 100000269963, 100000271173, 100000302204
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OFFSET
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0,1
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COMMENTS
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'Reverse and Subtract' (cf. A072137) is defined by x -> |x - reverse(x)|.
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LINKS
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EXAMPLE
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100000114412 -> 114410885589 -> 871177128822 -> 642355357644 -> 195601804398 -> 697806302193 -> 306602693397 -> 486793513206 -> 115521884478 and 115521884478 as a term of A072143 is the first term of the periodic part of the trajectory of 100000114412, period is 22.
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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STATUS
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approved
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