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A062216 Smoothly undulating palindromic primes of the form (31*10^a(n)-13)/99. 1
3, 51, 83, 225, 561, 10419, 18255, 43869 (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..8.

P. De Geest, SUPP Reference Table - 313

Index entries for sequences related to smoothly undulating palindromic primes

EXAMPLE

a(n)=51 -> (31*10^51-13)/99 = 313131313131313131313131313131313131313131313131313.

CROSSREFS

Cf. A062209-A062232, A059758, A032758.

Sequence in context: A071094 A144987 A227069 * A116630 A045489 A232453

Adjacent sequences:  A062213 A062214 A062215 * A062217 A062218 A062219

KEYWORD

nonn,base

AUTHOR

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

EXTENSIONS

43869 from Ray Chandler, Sep 30 2010

Edited by Ray Chandler, Aug 17 2011

STATUS

approved

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Last modified September 23 21:16 EDT 2017. Contains 292391 sequences.