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A062230
Numbers k such that the smoothly undulating palindromic number (95*10^k - 59)/99 is a prime.
0
5, 17, 209, 1295
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
EXAMPLE
k=17 -> (95*10^17 - 59)/99 = 95959595959595959.
CROSSREFS
KEYWORD
nonn,base,more
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