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A106073 Primes p such that 3*p+20 and 20*p+3 are primes. 0
11, 13, 23, 37, 43, 53, 71, 79, 83, 127, 167, 179, 181, 191, 193, 233, 251, 281, 307, 317, 421, 433, 487, 571, 617, 653, 659, 673, 739, 809, 881, 907, 911, 1033, 1049, 1093, 1103, 1117, 1187, 1201, 1259, 1297, 1399, 1423, 1451, 1499, 1553, 1667, 1693, 1709 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..50.

MATHEMATICA

Select[Prime[Range[220]], PrimeQ[20#+3]&&PrimeQ[3#+20]&]

PROG

(MAGMA) [p: p in PrimesUpTo(10000)| IsPrime(3*p+20) and IsPrime(20*p+3)] // Vincenzo Librandi, Nov 13 2010

CROSSREFS

Sequence in context: A066123 A048393 A136058 * A072330 A097933 A166484

Adjacent sequences:  A106070 A106071 A106072 * A106074 A106075 A106076

KEYWORD

nonn

AUTHOR

Zak Seidov, May 07 2005

STATUS

approved

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Last modified November 20 20:56 EST 2019. Contains 329347 sequences. (Running on oeis4.)