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

1,1

Links

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

Formula

A201822 INTERSECTS A202112.

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 *)

Crossrefs

Cf. A201822, A202112.

Sequence in context: A066904 A310124 A059969 * A176547 A310125 A124518

Adjacent sequences: A224861 A224862 A224863 * A224865 A224866 A224867

Keyword

nonn

Author

J. W. Helkenberg, Jul 22 2013

Status

approved