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A118607
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Start with 1 and repeatedly reverse the digits and add 18 to get the next term.
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1
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1, 19, 109, 919, 937, 757, 775, 595, 613, 334, 451, 172, 289, 1000, 19, 109, 919, 937, 757, 775, 595, 613, 334, 451, 172, 289, 1000, 19, 109, 919, 937, 757, 775, 595, 613, 334, 451, 172, 289, 1000, 19, 109, 919, 937, 757, 775, 595, 613, 334, 451, 172, 289
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OFFSET
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1,2
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COMMENTS
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After 1 step enters a cycle of length 13.
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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, 1).
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FORMULA
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MATHEMATICA
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NestList[IntegerReverse[#]+18&, 1, 60] (* or *) PadRight[{1}, 120, {1000, 19, 109, 919, 937, 757, 775, 595, 613, 334, 451, 172, 289}] (* Harvey P. Dale, Feb 19 2023 *)
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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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Luc Stevens (lms022(AT)yahoo.com), May 08 2006
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STATUS
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approved
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