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A108027 Numbers n such that 137*n + 139 is prime. 3
0, 12, 20, 26, 32, 54, 66, 92, 96, 104, 126, 132, 140, 144, 152, 174, 176, 180, 182, 186, 194, 200, 204, 210, 222, 230, 260, 264, 276, 284, 290, 302, 306, 336, 342, 360, 384, 390, 402, 404, 414, 416, 420, 480, 482, 486, 500, 510, 536, 546, 566, 570, 582, 584 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

137 and 139 are twin primes.

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000

Chris Caldwell, The First 1,008 Twin Primes.

EXAMPLE

If n=104 then 137*n + 139 = 14387 (prime).

MAPLE

a:=proc(n) if isprime(137*n+139)=true then n else fi end: seq(a(n), n=0..700); # Emeric Deutsch

MATHEMATICA

Select[Range[0, 600], PrimeQ[137#+139]&] (* Harvey P. Dale, Apr 03 2017 *)

PROG

(PARI) is(n)=isprime(137*n+139) \\ Charles R Greathouse IV, May 22 2017

CROSSREFS

Sequence in context: A324332 A035511 A095035 * A090767 A117227 A110187

Adjacent sequences: A108024 A108025 A108026 * A108028 A108029 A108030

KEYWORD

nonn

AUTHOR

Parthasarathy Nambi, May 31 2005

EXTENSIONS

More terms from Emeric Deutsch, Jun 13 2005

STATUS

approved

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Last modified December 6 07:53 EST 2022. Contains 358598 sequences. (Running on oeis4.)