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A090713 Primes whose base-17 expansion is a (valid) decimal expansion of a prime. 2
2, 3, 5, 7, 37, 43, 71, 103, 109, 139, 347, 349, 443, 449, 619, 647, 683, 887, 919, 1259, 1571, 1601, 1607, 1741, 1873, 2083, 2347, 2417, 2659, 2689, 4933, 4967, 4973, 4999, 5651, 5783, 5821, 6163, 6673, 6803, 6971, 7079, 7243, 7351, 7591 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
See A235126 for the corresponding primes whose base-10 representation is the base-17 representation of the terms here. - M. F. Hasler, Jan 05 2014
LINKS
EXAMPLE
The prime p = 37 is written 23 in base 17, and 23 is again a prime (when interpreted in base 10). Therefore p = 37 is a term of this sequence.
PROG
(PARI) is_A090713(p)=vecmax(d=digits(p, 17))<10&&isprime(vector(#d, i, 10^(#d-i))*d~)&&isprime(p) \\ - M. F. Hasler, Jan 05 2014
CROSSREFS
Cf. A090707 - A090721 and further references there.
Sequence in context: A048415 A029974 A065727 * A090912 A048416 A048401
KEYWORD
base,nonn
AUTHOR
Cino Hilliard, Jan 18 2004
EXTENSIONS
Edited by N. J. A. Sloane, Feb 07 2007, and by M. F. Hasler, Jan 03 2014
STATUS
approved

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Last modified July 19 11:10 EDT 2024. Contains 374392 sequences. (Running on oeis4.)