login
This site is supported by donations to The OEIS Foundation.

 

Logo

Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A106059 Primes p such that p+6 and 6*p+1 are primes. 0
5, 7, 11, 13, 17, 23, 37, 47, 61, 73, 83, 101, 103, 107, 131, 151, 173, 233, 257, 263, 271, 277, 311, 331, 347, 367, 373, 443, 461, 503, 557, 593, 601, 607, 641, 653, 727, 751, 853, 941, 947, 971, 1013, 1033, 1063, 1091, 1103, 1117, 1283, 1321, 1361 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..51.

MATHEMATICA

Select[Prime[Range[220]], PrimeQ[6#+1]&&PrimeQ[1#+6]&]

PROG

(MAGMA) [p: p in PrimesUpTo(5000)|IsPrime(p+6) and IsPrime(6*p+1)] [From Vincenzo Librandi, Jan 30 2011]

CROSSREFS

Cf. A007693, A023201.

Sequence in context: A243593 A015914 A023201 * A102386 A038958 A109416

Adjacent sequences:  A106056 A106057 A106058 * A106060 A106061 A106062

KEYWORD

nonn

AUTHOR

Zak Seidov, May 07 2005

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified December 6 05:01 EST 2016. Contains 278772 sequences.