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A117830
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Let S_m be the infinite sequence formed by starting with m and repeatedly reversing the digits and adding 4 to get the next term. For many small values of m (in fact for all m < 1015), S_m always enters the cycle of length 54 whose terms are shown here.
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8
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5, 9, 13, 35, 57, 79, 101, 105, 505, 509, 909, 913, 323, 327, 727, 731, 141, 145, 545, 549, 949, 953, 363, 367, 767, 771, 181, 185, 585, 589, 989, 993, 403, 308, 807, 712, 221, 126, 625, 530, 39, 97, 83, 42, 28, 86, 72, 31, 17, 75, 61, 20, 6, 10, 5, 9, 13, 35, 57, 79, 101, 105, 505, 509, 909, 913, 323, 327, 727, 731, 141, 145
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| S_1015 is the first exception: this immediately enters the cycle of length 90 shown in A117807. - Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), May 05 2006
Except for the initial 1, identical to A117828.
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LINKS
| N. J. A. Sloane, Sequences of RADD type
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CROSSREFS
| S_1 is given in A117828, S_3 in A117829. See also A117827, A117831, A117807.
Sequence in context: A180514 A118837 A117828 * A191219 A061516 A146135
Adjacent sequences: A117827 A117828 A117829 * A117831 A117832 A117833
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KEYWORD
| nonn,base
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AUTHOR
| Luc Stevens (lms022(AT)yahoo.com), Apr 06 2006
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EXTENSIONS
| Edited by N. J. A. Sloane (njas(AT)research.att.com), May 05 2006
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