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!)
A110410 a(1) = 10, a(n+1) = {a(n) followed by digit reversal(a(n))}/11. 0
10, 91, 829, 75448, 685898587, 62354417071445326, 566858337013139332941310642858666, 51532576092103575721937331168969696987113273922657630119157623515 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(1) = 10 is chosen because for n = say d <=9, the sequence is trivially d,d,d,d,d,d,...

The next term has 129 digits (From Harvey P. Dale, Feb 20 2011 *)

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

a(2) = 1001/11=91, a(3) = 9119/11=829.

MATHEMATICA

nxt[n_]:=Module[{idn=IntegerDigits[n]}, FromDigits[Join[idn, Reverse[idn]]]/11]

NestList[nxt, 10, 8]  (* Harvey P. Dale, Feb 20 2011 *)

CROSSREFS

Sequence in context: A002452 A096261 A015455 * A051789 A267833 A015467

Adjacent sequences:  A110407 A110408 A110409 * A110411 A110412 A110413

KEYWORD

base,easy,nonn

AUTHOR

Amarnath Murthy, Jul 30 2005

EXTENSIONS

More terms from Joshua Zucker, May 10 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 7 03:40 EDT 2020. Contains 333292 sequences. (Running on oeis4.)