A100807 Primes p such that either (or both) p-10 or p+10 are primes.

3, 7, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 61, 71, 73, 79, 83, 89, 97, 103, 107, 113, 127, 137, 139, 149, 157, 163, 167, 173, 181, 191, 223, 229, 233, 239, 241, 251, 271, 281, 283, 293, 307, 317, 337, 347, 349, 359, 373, 379, 383, 389, 409, 419, 421, 431

Offset

1,1

Links

Table of n, a(n) for n=1..57.

Example

Primes 3 and 13 differ by 10.
Primes 61 and 71 differ by 10.

Mathematica

Select[ Prime[ Range[83]], PrimeQ[ # - 10] || PrimeQ[ # + 10] &] (* Robert G. Wilson v, Jan 12 2005 *)

Crossrefs

Sequence in context: A117533 A065057 A363636 * A290400 A040999 A172240

Adjacent sequences: A100804 A100805 A100806 * A100808 A100809 A100810

Keyword

nonn,easy

Author

Parthasarathy Nambi, Jan 04 2005

Extensions

More terms from Robert G. Wilson v, Jan 12 2005

Status

approved