1,1

Primes p such that p-1000 is also prime.

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

a(1) = 13+1000= 1013. a(2) = 19+1000=1019. a(3) = 31+1000=1031.

Select[Prime[Range[1000]]+1000, PrimeQ] [from Harvey P. Dale, Dec. 15, 2010]

Cf. A101408.

Sequence in context: A131461 A166975 A266369 * A069489 A157008 A161404

Adjacent sequences: A165292 A165293 A165294 * A165296 A165297 A165298

nonn,easy

Vincenzo Librandi, Sep 14 2009

Definition rephrased; cf. to A101408 added - R. J. Mathar, Sep 16 2009

approved