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A155489 Primes p such that p and prime(p) have an odd largest digit. 0
3, 5, 7, 11, 17, 19, 29, 31, 37, 59, 67, 71, 73, 97, 101, 109, 113, 127, 131, 137, 139, 149, 157, 167, 173, 191, 193, 199, 223, 229, 233, 239, 251, 269, 271, 293, 307, 317, 337, 349, 359, 367, 373, 379, 397, 419, 439, 449, 457, 467, 479, 491, 499, 503, 509, 521 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
3 is a term because it is prime, its largest digit is odd, and the largest digit of prime(3)=5 is also odd.
13 is not a term because the largest digit of prime(13)=41 is even.
CROSSREFS
Cf. A000040.
Subsequence of A155058.
Sequence in context: A048184 A290283 A163420 * A194099 A045396 A155779
KEYWORD
nonn,base,less
AUTHOR
EXTENSIONS
Corrected (43 removed, 167 inserted, 263 removed) by R. J. Mathar, May 10 2010
STATUS
approved

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Last modified April 17 07:48 EDT 2024. Contains 371756 sequences. (Running on oeis4.)