A167839 - OEIS

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A167839

Five-times-isolated primes: primes p such that none of (p-10,p-8,p-6,p-4,p-2,p+2,p+4,p+6,p+8,p+10) are prime.

2, 211, 1511, 1847, 2179, 2503, 2579, 2633, 2819, 2939, 3137, 3271, 3433, 3659, 3967, 3989, 4111, 4177, 4409, 4621, 4691, 4703, 4831, 4889, 5039, 5209, 5261, 5623, 5939, 5953, 6619, 6637, 6883, 7057, 7283, 7369, 7393, 7433, 7621, 7741, 7841, 7853, 7963

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Essentially the same as A137872. [From R. J. Mathar, Dec 06 2009]

Includes almost all primes.

LINKS

Table of n, a(n) for n=1..43.

EXAMPLE

a(1)=2 (-8,-6,-4,-2,0,4,6,8,10,12 are nonprimes); a(2)=211 (201,203,205,207,209,213,215,217,219,221 are nonprimes).

CROSSREFS

Sequence in context: A167833 A167838 A106100 * A107612 A068814 A215641