|
| |
|
|
A023225
|
|
Numbers n such that n and 7n + 6 both prime.
|
|
11
| |
|
|
5, 11, 13, 19, 23, 31, 41, 43, 59, 61, 71, 83, 103, 109, 113, 149, 151, 173, 179, 199, 211, 223, 229, 233, 241, 263, 269, 281, 283, 353, 373, 379, 383, 389, 419, 421, 431, 433, 439, 479, 499, 503, 541, 563, 569, 571, 593, 613, 619, 631, 641, 643, 683, 709, 719, 739, 761
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
MATHEMATICA
| lst={}; Do[If[PrimeQ[n]&&PrimeQ[7*n+6], AppendTo[lst, n]], {n, 13^3}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Sep 08 2008]
|
|
|
PROG
| (MAGMA) [n: n in [0..1000] | IsPrime(n) and IsPrime(7*n+6)] [From V. Librandi, Nov 20 2010]
|
|
|
CROSSREFS
| Sequence in context: A153418 A079019 A191034 * A098085 A104216 A040144
Adjacent sequences: A023222 A023223 A023224 * A023226 A023227 A023228
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| David W. Wilson (davidwwilson(AT)comcast.net)
|
| |
|
|
