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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A062227 Smoothly undulating palindromic primes of the form (91*10^a(n)-19)/99. 0
3, 9, 11, 17, 23, 25229 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Prime versus probable prime status and proofs are given in the author's table.

No further terms < 100000. - Ray Chandler, Aug 17 2011

LINKS

Table of n, a(n) for n=1..6.

P. De Geest, SUPP Reference Table - 919

Index entries for sequences related to smoothly undulating palindromic primes

EXAMPLE

a(n)=23 -> (91*10^23-19)/99 = 91919191919191919191919.

CROSSREFS

Cf. A062209-A062232, A059758, A032758.

Sequence in context: A211864 A157139 A050538 * A111324 A107073 A227245

Adjacent sequences:  A062224 A062225 A062226 * A062228 A062229 A062230

KEYWORD

nonn,base

AUTHOR

Patrick De Geest and Hans Rosenthal (Hans.Rosenthal(AT)t-online.de), Jun 15 2001.

EXTENSIONS

Edited by Ray Chandler, Aug 17 2011

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified September 23 21:30 EDT 2017. Contains 292392 sequences.