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A123997 Numbers k for which 16*k+1, 16*k+3 and 16*k+15 are primes. 1

%I #12 Mar 28 2020 04:28:14

%S 1,133,166,208,313,418,616,691,718,1336,1441,1573,1588,1756,2083,2308,

%T 2533,2926,2986,3688,3766,3883,4036,4096,4201,4663,5311,5626,5908,

%U 6181,7018,7456,7771,7798,8188,8881,9196,9343,9388,9826,10108,10123,10528

%N Numbers k for which 16*k+1, 16*k+3 and 16*k+15 are primes.

%H Amiram Eldar, <a href="/A123997/b123997.txt">Table of n, a(n) for n = 1..10000</a>

%t Select[Range[11000], And @@ PrimeQ /@ ({1, 3, 15} + 16#) &] (* _Ray Chandler_, Nov 05 2006 *)

%Y Cf. A092022.

%K nonn

%O 1,2

%A _Artur Jasinski_, Oct 31 2006

%E Extended by _Ray Chandler_, Nov 05 2006

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Last modified June 10 03:44 EDT 2024. Contains 373251 sequences. (Running on oeis4.)