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A123982 Numbers k such that 12*k+1, 12*k+5 and 12*k+11 are primes. 1
1, 3, 8, 19, 29, 38, 56, 71, 73, 78, 84, 91, 101, 108, 119, 124, 129, 133, 134, 166, 199, 203, 224, 236, 246, 288, 294, 301, 316, 344, 376, 399, 411, 423, 488, 623, 628, 631, 656, 686, 724, 728, 819, 861, 871, 883, 894, 1008, 1009, 1053, 1074, 1086, 1156, 1179 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..10000

MAPLE

a:=proc(n) if isprime(12*n+1)=true and isprime(12*n+5)=true and isprime(12*n+11)=true then n else fi end: seq(a(n), n=1..1400); # Emeric Deutsch, Nov 06 2006

MATHEMATICA

Select[Range[1200], And @@ PrimeQ /@ ({1, 5, 11} + 12#) &] (* Ray Chandler, Nov 05 2006 *)

CROSSREFS

Cf. A110801.

Sequence in context: A124086 A091109 A219391 * A171308 A113535 A184444

Adjacent sequences:  A123979 A123980 A123981 * A123983 A123984 A123985

KEYWORD

nonn

AUTHOR

Artur Jasinski, Oct 30 2006

EXTENSIONS

Extended by Ray Chandler, Nov 05 2006

More terms from Emeric Deutsch, Nov 06 2006

STATUS

approved

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Last modified July 24 09:52 EDT 2021. Contains 346273 sequences. (Running on oeis4.)