A140551 Primes p such that neither |p - 30| nor |p + 30| is prime.

2, 3, 5, 173, 191, 331, 373, 421, 443, 467, 499, 503, 523, 619, 641, 659, 701, 719, 733, 751, 761, 811, 821, 863, 919, 929, 1097, 1103, 1109, 1129, 1213, 1237, 1283, 1301, 1303, 1361, 1367, 1373, 1381, 1427, 1433, 1447, 1471, 1487, 1499, 1531, 1543

Offset

1,1

Links

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

Mathematica

Select[Prime[Range[500]], !PrimeQ[#-30]&&!PrimeQ[#+30]&]  (* Harvey P. Dale, Apr 16 2011 *)

Crossrefs

Sequence in context: A325505 A366642 A319609 * A064936 A041655 A082520

Adjacent sequences: A140548 A140549 A140550 * A140552 A140553 A140554

Keyword

nonn

Author

Juri-Stepan Gerasimov, Jun 30 2008

Extensions

Corrected (3, 5, 331 inserted) by R. J. Mathar, Apr 25 2010

Corrected (19 deleted) by Harvey P. Dale, Apr 16 2011.

Status

approved