

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
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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



