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A062217
Numbers k such that the smoothly undulating palindromic number (32*10^k - 23)/99 is a prime.
0
5, 9, 11, 3015, 3407, 6959, 9599, 11399, 16593, 25883
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=11 -> (32*10^11 - 23)/99 = 32323232323.
CROSSREFS
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