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A088768 a(n) = (A087682(n)-1)/2. 6
5, 7, 10, 19, 22, 25, 37, 40, 52, 79, 82, 85, 94, 109, 115, 124, 142, 169, 172, 187, 190, 220, 235, 247, 274, 277, 289, 292, 304, 319, 325, 334, 367, 382, 409, 415, 472, 487, 502, 520, 547, 550, 589, 604, 610, 649, 655, 715, 739, 745, 775, 787, 802, 814, 850 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..5300

MATHEMATICA

Select[Range[6, 2000], PrimeQ[2 # + 7] && PrimeQ[2 # - 9] &] - 1 (* Vincenzo Librandi, May 20 2017 *)

PROG

(MAGMA) [(n-1)/2: n in [6..2000] |IsPrime(n+8) and IsPrime(n-8)]; // Vincenzo Librandi, May 20 2019

CROSSREFS

Cf. A087682, A088762, A088764, A088766, A088770.

Sequence in context: A073895 A320447 A113194 * A131998 A141443 A215660

Adjacent sequences:  A088765 A088766 A088767 * A088769 A088770 A088771

KEYWORD

nonn

AUTHOR

Ray Chandler, Oct 26 2003

STATUS

approved

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Last modified August 18 20:02 EDT 2019. Contains 326109 sequences. (Running on oeis4.)