A224864 Numbers n such that 90*n + 77 and 90*n + 79 are twin primes.

3, 6, 15, 17, 18, 19, 20, 24, 29, 41, 45, 46, 60, 62, 68, 75, 82, 83, 89, 94, 95, 104, 111, 115, 122, 130, 146, 148, 152, 159, 169, 173, 174, 179, 199, 215, 218, 223, 227, 236, 239, 244, 255, 267, 276, 288, 305, 334, 353, 355, 356, 358, 369, 375, 381, 393, 398

Offset: 1

Author

J. W. Helkenberg, Jul 22 2013

Keywords

• nonn

Links

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

Crossrefs

Cf. A201822, A202112.

Programs

Mathematica

Select[Range[0, 499], PrimeQ[90# + 77] && PrimeQ[90# + 79] &] (* copied from: Alonso del Arte, Jul 22 2013 *)
Select[Range[500],AllTrue[90#+{77,79},PrimeQ]&] (* Harvey P. Dale, Mar 19 2023 *)

Formula

A201822 INTERSECTS A202112.