

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
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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 and others, Sequences of RADD type, OEIS wiki.
Index entries for linear recurrences with constant coefficients, order 207.


FORMULA

After 1 step enters a cycle of length 207.
It appears that there is a unique cycle of length 207 for the reverseandadd5 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: A024952 A278833 A284293 * A118847 A111256 A221026
Adjacent sequences: A117797 A117798 A117799 * A117801 A117802 A117803


KEYWORD

nonn,base


AUTHOR

N. J. A. Sloane, following discussions with Luc Stevens, May 04 2006


STATUS

approved



