The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A176114 Numbers n such that 30*n-1, 30*n+1 are twin primes. 6
 1, 2, 5, 6, 8, 9, 14, 19, 20, 22, 27, 34, 35, 41, 43, 44, 54, 65, 71, 77, 78, 85, 91, 93, 99, 100, 104, 110, 111, 112, 113, 118, 131, 134, 135, 141, 142, 155, 160, 167, 170, 176, 184, 188, 195, 196, 203, 209, 210, 212, 215, 219, 222, 223, 226, 229, 232, 245, 252 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Zak Seidov, Table of n, a(n) for n = 1..1000 MATHEMATICA Select[Range[6! ], PrimeQ[30*#-1]&&PrimeQ[30*#+1]&] Select[Range[300], AllTrue[30#+{1, -1}, PrimeQ]&] (* The program uses the AllTrue function from Mathematica version 10 *) (* Harvey P. Dale, Mar 21 2018 *) CROSSREFS Cf. A002822. Sequence in context: A047325 A102611 A323112 * A057915 A154329 A176590 Adjacent sequences:  A176111 A176112 A176113 * A176115 A176116 A176117 KEYWORD nonn AUTHOR Vladimir Joseph Stephan Orlovsky, Apr 08 2010 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
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified September 30 05:03 EDT 2020. Contains 337435 sequences. (Running on oeis4.)