login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A117807 Start with 1015 and repeatedly reverse the digits and add 4 to get the next term. 4
1015, 5105, 5019, 9109, 9023, 3213, 3127, 7217, 7131, 1321, 1235, 5325, 5239, 9329, 9243, 3433, 3347, 7437, 7351, 1541, 1455, 5545, 5459, 9549, 9463, 3653, 3567, 7657, 7571, 1761, 1675, 5765, 5679, 9769, 9683, 3873, 3787, 7877, 7791, 1981, 1895, 5985, 5899, 9989, 9903, 3103, 3017, 7107, 7021, 1211, 1125, 5215, 5129, 9219, 9133, 3323, 3237, 7327, 7241, 1431, 1345, 5435, 5349, 9439, 9353, 3543, 3457, 7547, 7461, 1651, 1565, 5655, 5569, 9659, 9573, 3763, 3677, 7767, 7681, 1871, 1785, 5875, 5789, 9879, 9793, 3983, 3897, 7987, 7901, 1101 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..90.

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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1).

FORMULA

Has period 90. A full period is shown.

MATHEMATICA

NestList[FromDigits[Reverse[IntegerDigits[#]]]+4&, 1015, 90] (* Harvey P. Dale, Jul 18 2015 *)

CROSSREFS

Cf. A117830, A117828.

Sequence in context: A023076 A261291 A225717 * A223089 A167807 A118879

Adjacent sequences:  A117804 A117805 A117806 * A117808 A117809 A117810

KEYWORD

nonn,base

AUTHOR

Klaus Brockhaus, May 05 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 April 24 09:54 EDT 2019. Contains 322420 sequences. (Running on oeis4.)