login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A118530 Start with 1 and repeatedly reverse the digits and add 13 to get the next term. 1
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..57.

N. J. A. Sloane and others, Sequences of RADD type, OEIS wiki.

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).

FORMULA

After 31 steps enters a cycle of length 18.

MATHEMATICA

NestList[FromDigits[Reverse[IntegerDigits[#]]]+13&, 1, 60] (* Harvey P. Dale, Oct 27 2015 *)

CROSSREFS

Cf. A117828, A117816, A117817.

Sequence in context: A241354 A240811 A118856 * A048971 A299646 A006597

Adjacent sequences:  A118527 A118528 A118529 * A118531 A118532 A118533

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane, May 06 2006

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 23 09:53 EDT 2021. Contains 345397 sequences. (Running on oeis4.)