A155942 - OEIS

A155942

Numbers n such that 16n+1 is a prime.

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

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OFFSET

1,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

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

Cf. A094407, A155941, A155943.

Sequence in context: A276089 A037364 A315833 * A315834 A315835 A109605

Adjacent sequences: A155939 A155940 A155941 * A155943 A155944 A155945

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Jan 31 2009

STATUS

approved