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A118530
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Start with 1 and repeatedly reverse the digits and add 13 to get the next term.
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1
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1, 14, 54, 58, 98, 102, 214, 425, 537, 748, 860, 81, 31, 26, 75, 70, 20, 15, 64, 59, 108, 814, 431, 147, 754, 470, 87, 91, 32, 36, 76, 80, 21, 25, 65, 69, 109, 914, 432, 247, 755, 570, 88, 101, 114, 424, 437, 747, 760, 80, 21, 25, 65, 69, 109, 914, 432
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OFFSET
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1,2
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LINKS
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Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1).
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FORMULA
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After 31 steps enters a cycle of length 18.
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MATHEMATICA
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NestList[FromDigits[Reverse[IntegerDigits[#]]]+13&, 1, 60] (* Harvey P. Dale, Oct 27 2015 *)
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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