A099231 Numbers n such that n*((2^61-1)^4) - 1 and n*((2^61-1)^4) + 1 are twin primes.

53820, 60042, 84978, 101862, 110502, 178812, 181668, 222378, 245910, 266808, 275280, 310392, 353568, 353598, 354750, 373692, 477162, 491838, 498132

Offset

1,1

Links

Table of n, a(n) for n=1..19.

Mathematica

With[{c=(2^61-1)^4}, Select[Range[500000], AllTrue[c*#+{1, -1}, PrimeQ]&]] (* The program uses the AllTrue function from Mathematica version 10 *) (* Harvey P. Dale, Aug 30 2015 *)

Crossrefs

Cf. A099229, A099230.

Sequence in context: A237373 A251369 A252035 * A237547 A100422 A099010

Adjacent sequences: A099228 A099229 A099230 * A099232 A099233 A099234

Keyword

nonn

Author

Pierre CAMI, Oct 07 2004

Extensions

More terms from Harvey P. Dale, Aug 30 2015

Status

approved