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A155942
Numbers n such that 16n+1 is a prime.
3
1, 6, 7, 12, 15, 16, 21, 22, 25, 27, 28, 36, 37, 40, 42, 48, 55, 58, 61, 63, 72, 75, 76, 78, 81, 85, 88, 93, 97, 100, 106, 111, 117, 118, 126, 130, 132, 133, 135, 142, 151, 162, 163, 166, 168, 172, 175, 177, 181, 190, 193, 195, 196, 198, 201, 207, 208, 210, 216, 226
OFFSET
1,2
LINKS
MATHEMATICA
Select[Range[400], PrimeQ[16 # + 1] &] (* Vincenzo Librandi, Feb 16 2013 *)
PROG
(Magma) [n: n in [0..400] | IsPrime(16*n + 1)]; // Vincenzo Librandi, Feb 16 2013
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Jan 31 2009
STATUS
approved