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A118571 Sophie Germain primes for which the sum of the digits is a prime. 0
2, 3, 5, 11, 23, 29, 41, 83, 89, 113, 131, 173, 179, 191, 281, 359, 443, 593, 641, 683, 719, 809, 911, 953, 1013, 1019, 1031, 1103, 1439, 1451, 1499, 1583, 1811, 1901, 2003, 2063, 2069, 2339, 2351, 2393, 2399, 2753, 2939, 3299, 3329, 3389, 3413, 3491, 3761 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..49.

EXAMPLE

191 is in the sequence because (1) it is a Sophie Germain prime and (2) the sum of its digits 1+9+1=11 is a prime.

CROSSREFS

Cf. A005384.

Sequence in context: A214196 A246857 A005384 * A118504 A215714 A038905

Adjacent sequences:  A118568 A118569 A118570 * A118572 A118573 A118574

KEYWORD

base,nonn

AUTHOR

Luc Stevens (lms022(AT)yahoo.com), May 07 2006

STATUS

approved

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Last modified November 13 15:41 EST 2019. Contains 329106 sequences. (Running on oeis4.)