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A062211
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Numbers k such that the smoothly undulating palindromic number (15*10^k - 51)/99 is a prime.
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0
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3, 15, 63, 89, 245, 583, 1791, 2123, 7233, 24787, 44653
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OFFSET
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1,1
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COMMENTS
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Prime versus probable prime status and proofs are given in the author's table.
No further terms < 100000. - Ray Chandler, Aug 17 2011
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LINKS
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Table of n, a(n) for n=1..11.
P. De Geest, SUPP Reference Table - 151
Index entries for sequences related to smoothly undulating palindromic primes
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EXAMPLE
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k=15 -> (15*10^15 - 51)/99 = 151515151515151.
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CROSSREFS
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Cf. A062209-A062232, A059758, A032758.
Sequence in context: A122671 A317181 A067562 * A260326 A204086 A171761
Adjacent sequences: A062208 A062209 A062210 * A062212 A062213 A062214
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KEYWORD
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nonn,base
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AUTHOR
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Patrick De Geest and Hans Rosenthal (Hans.Rosenthal(AT)t-online.de), Jun 15 2001
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EXTENSIONS
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a(11)=44653 from Ray Chandler, Nov 11 2010
Edited by Ray Chandler, Aug 17 2011
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STATUS
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approved
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