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URL: https://oeis.org/A107369

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A107369

Numbers n such that 103*n + 101 is prime.

3

0, 2, 6, 14, 20, 30, 56, 66, 72, 74, 84, 90, 102, 116, 132, 134, 146, 150, 162, 164, 176, 186, 206, 212, 216, 224, 234, 240, 246, 254, 260, 282, 312, 314, 326, 332, 342, 344, 350, 354, 360, 366, 380, 402, 410, 414, 444, 450, 482, 486, 492, 510, 512, 534, 540

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OFFSET

1,2

COMMENTS

101 and 103 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=0, then 103*n + 101 = 101 (prime).

If n=74, then 103*n + 101 = 7723 (prime).

MAPLE

a:=proc(n) if isprime(103*n+101)=true then n else fi end: seq(a(n), n=0..700); # Emeric Deutsch

MATHEMATICA

Select[Range[0, 600], PrimeQ[103#+101]&] (* Harvey P. Dale, Mar 14 2015 *)

PROG

(PARI) is(n)=isprime(103*n+101) \\ Charles R Greathouse IV, Jun 12 2017

CROSSREFS

Sequence in context: A067664 A130800 A067262 * A151731 A009779 A086666

Adjacent sequences: A107366 A107367 A107368 * A107370 A107371 A107372

KEYWORD

nonn,easy

AUTHOR

Parthasarathy Nambi, May 24 2005

EXTENSIONS

More terms from Emeric Deutsch, Jun 13 2005

STATUS

approved