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A244269 Primes p such that 1p2p3p4p5p6p7p8p9 is prime. 0
2, 59, 67, 89, 113, 211, 239, 307, 379, 421, 593, 701, 907, 1283, 1367, 1759, 1777, 1823, 1867, 2131, 2179, 2467, 2663, 2753, 2861, 2953, 3109, 3389, 3407, 3463, 3517, 4457, 4481, 4583, 4759, 5077, 5227, 5437, 5501, 7043, 7103, 7253, 7331, 7541, 7673, 7703, 7919, 8087, 8221, 8363, 8461, 8609, 8783, 8923, 9001 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..55.

EXAMPLE

59 is prime and 1592593594595596597598599 is prime. Thus 59 is a member of this sequence.

PROG

(PARI) for(n=1, 10^4, b=""; for(i=3, 19, if(i==Mod(1, 2), b=concat(b, Str((i-1)/2))); if(i==Mod(0, 2), b=concat(b, Str(prime(n))))); if(ispseudoprime(eval(b)), print1(prime(n), ", ")))

CROSSREFS

Cf. A244268.

Sequence in context: A136095 A181866 A106897 * A195325 A195329 A197185

Adjacent sequences:  A244266 A244267 A244268 * A244270 A244271 A244272

KEYWORD

nonn,base,less

AUTHOR

Derek Orr, Jun 24 2014

STATUS

approved

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Last modified July 8 03:25 EDT 2020. Contains 335503 sequences. (Running on oeis4.)