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A106065 Primes p such that 1*p+18 and 18*p+1 are primes. 0
11, 29, 41, 71, 79, 139, 149, 181, 251, 379, 401, 431, 491, 569, 659, 701, 709, 809, 821, 991, 1021, 1051, 1231, 1289, 1381, 1471, 1549, 1759, 1871, 1931, 1999, 2069, 2221, 2251, 2381, 2459, 2591, 2671, 2711, 2909, 2939, 3301, 3371, 3499, 3511, 3539, 3709 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Subsequence of A153418. - Michel Marcus, Dec 27 2014

LINKS

Table of n, a(n) for n=1..47.

MATHEMATICA

Select[Prime[Range[220]], PrimeQ[18#+1]&&PrimeQ[1#+18]&]

PROG

(Magma) [p: p in PrimesUpTo(10000)| IsPrime(p+18) and IsPrime(18*p+1)] // Vincenzo Librandi, Nov 13 2010

CROSSREFS

Cf. A153418 (p and p+18 are prime).

Sequence in context: A087693 A106017 A343418 * A247089 A156110 A155188

Adjacent sequences:  A106062 A106063 A106064 * A106066 A106067 A106068

KEYWORD

nonn

AUTHOR

Zak Seidov, May 07 2005

STATUS

approved

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Last modified September 29 06:36 EDT 2022. Contains 357082 sequences. (Running on oeis4.)