A106023 Primes p such that 8*p +- 3, 28*p +- 3 and 38*p +- 3 are all primes.

2, 7, 6977, 25247, 35803, 96017, 132547, 155003, 347317, 741683, 765613, 820223, 943567, 1370063, 1514917, 1726303, 2589557, 2929523, 3280307, 3868247, 4612183, 4914397, 5632597, 5788043, 5920693, 6033403, 6993593, 7147303, 8045623

Offset

1,1

Links

Table of n, a(n) for n=1..29.

Mathematica

Select[Prime[Range[40000]], PrimeQ[8#+3]&&PrimeQ[8#-3]&&PrimeQ[28#+3]&&PrimeQ[28#-3]&&PrimeQ[38#+3]&&PrimeQ[38#-3]&]

Prog

(Magma) [p: p in PrimesUpTo(10000000)| IsPrime(28*p+3) and IsPrime(28*p-3)and IsPrime(8*p-3) and IsPrime(8*p+3) and IsPrime(38*p-3) and IsPrime(38*p+3)]; // Vincenzo Librandi, Nov 13 2010

Crossrefs

Sequence in context: A088549 A226704 A224420 * A309411 A215438 A152181

Adjacent sequences: A106020 A106021 A106022 * A106024 A106025 A106026

Keyword

nonn

Author

Zak Seidov, May 05 2005

Status

approved