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A117800 Start with 1 and repeatedly reverse the digits and add 5 to get the next term. 9
1, 6, 11, 16, 66, 71, 22, 27, 77, 82, 33, 38, 88, 93, 44, 49, 99, 104, 406, 609, 911, 124, 426, 629, 931, 144, 446, 649, 951, 164, 466, 669, 971, 184, 486, 689, 991, 204, 407, 709, 912, 224, 427, 729, 932, 244, 447, 749, 952, 264, 467, 769, 972, 284, 487, 789, 992, 304, 408 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

LINKS

N. J. A. Sloane, Table of n, a(n) for n = 0..414 (shows two full cycles)

N. J. A. Sloane, Sequences of RADD type

FORMULA

After 1 step enters a cycle of length 207.

It appears that there is a unique cycle of length 207 for the reverse-and-add-5 problem. Klaus Brockhaus has done an extensive search without finding any further cycle of length 207. There are many cycles of lengths 36 and 756. See A118878.

CROSSREFS

Cf. A117828, A118878, A118879.

Sequence in context: A191158 A024730 A024952 * A118847 A111256 A001964

Adjacent sequences:  A117797 A117798 A117799 * A117801 A117802 A117803

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), following discussions with Luc Stevens, May 04 2006

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Last modified February 16 16:00 EST 2012. Contains 205938 sequences.