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A089968 Decimal primes whose decimal representation in base 16 is also prime. +0
1
2, 3, 5, 7, 17, 19, 23, 41, 67, 71, 83, 89, 97, 103, 113, 131, 137, 151, 257, 263, 311, 313, 337, 359, 401, 409, 547, 563, 569, 577, 593, 599, 617, 631, 641, 643, 659, 787, 823, 839, 857, 883, 919 (list; graph; listen)
OFFSET

1,1

EXAMPLE

43 is prime in decimal and 43 base 16 is 67 which is also prime in decimal.

CROSSREFS

Sequence in context: A042995 A108222 A090725 this_sequence A164060 A113029 A090432

Adjacent sequences: A089965 A089966 A089967 this_sequence A089969 A089970 A089971

KEYWORD

base,nonn

AUTHOR

Cino Hilliard (hillcino368(AT)gmail.com), Jan 18 2004

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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.


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