login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A049437 p, p+2 and p+8 are all primes but p+6 is not. 5
3, 29, 59, 71, 149, 269, 431, 569, 599, 1031, 1061, 1229, 1289, 1319, 1451, 1619, 2129, 2339, 2381, 2549, 2711, 2789, 3299, 3539, 4019, 4049, 4091, 4649, 4721, 5099, 5441, 5519, 5639, 5741, 5849, 6269, 6359, 6569, 6701, 6959, 7211 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

p+4 is not prime here except for p=3.

EXAMPLE

p=29 is the smallest prime so that p, p+2 and p+8 are consecutive primes.

PROG

(MAGMA) [p: p in PrimesUpTo(8000)| IsPrime(p+2) and IsPrime(p+8) and not IsPrime(p+6) ] [From Vincenzo Librandi, Jan 28 2011]

CROSSREFS

Cf. A007530, A023202, A031926, A046134, A046138, A049436, A049438, A046138.

Sequence in context: A071150 A107189 A059761 * A171409 A031912 A119951

Adjacent sequences:  A049434 A049435 A049436 * A049438 A049439 A049440

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu)

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 17 14:50 EST 2012. Contains 206050 sequences.