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A062219 Smoothly undulating palindromic primes of the form (37*10^a(n)-73)/99. 0
3, 21, 27, 81, 315, 849, 1893, 2883, 9591, 14691 (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..10.

P. De Geest, SUPP Reference Table - 373

Index entries for sequences related to smoothly undulating palindromic primes

EXAMPLE

a(n)=21 -> (37*10^21-73)/99 = 373737373737373737373.

CROSSREFS

Cf. A062209-A062232, A059758, A032758.

Sequence in context: A273481 A050586 A074217 * A091103 A045802 A006133

Adjacent sequences:  A062216 A062217 A062218 * A062220 A062221 A062222

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

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