

A090713


Primes whose base17 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
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OFFSET

1,1


COMMENTS

See A235126 for the corresponding primes whose base10 representation is the base17 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^(#di))*d~)&&isprime(p) \\  M. F. Hasler, Jan 05 2014


CROSSREFS



KEYWORD

base,nonn


AUTHOR



EXTENSIONS



STATUS

approved



