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A089971 Decimal primes whose decimal representation in base 2 is also prime. 1
11, 101, 10111, 101111, 1011001, 1100101, 10010101, 10011101, 10100011, 10101101, 10110011, 11000111, 11100101, 100111001, 101001011, 101101111, 101111011, 101111111, 110111011, 111001001, 1000001011, 1001001011 (list; graph; refs; listen; history; internal format)
OFFSET

2,1

EXAMPLE

3 is prime in decimal and 3 base 2 is 11 which is also prime in decimal.

CROSSREFS

Sequence in context: A080439 A098153 A020449 * A082620 A199304 A156668

Adjacent sequences:  A089968 A089969 A089970 * A089972 A089973 A089974

KEYWORD

base,nonn

AUTHOR

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

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Last modified February 15 16:39 EST 2012. Contains 205823 sequences.