A086478 Primes p such that 512p+1 and (p-1)/512 are both prime.

183809, 220673, 420353, 629249, 696833, 1772033, 1904129, 2186753, 4137473, 4930049, 5575169, 6435329, 7040513, 8355329, 9405953, 9491969, 9882113, 10112513, 10373633, 11580929, 11648513, 11725313, 13209089, 13445633

Offset

1,1

Links

Table of n, a(n) for n=1..24.

Mathematica

Prime[ Select[ Range[957580], PrimeQ[(Prime[ # ] - 1)/512] && PrimeQ[512Prime[ # ] + 1] &]]
Select[Prime[Range[900000]], AllTrue[{512#+1, (#-1)/512}, PrimeQ]&] (* The program uses the AllTrue function from Mathematica version 10 *) (* Harvey P. Dale, Dec 13 2018 *)

Crossrefs

Cf. A085957, A085958, A086476, A086477.

Sequence in context: A030466 A233956 A249232 * A207795 A228677 A268853

Adjacent sequences: A086475 A086476 A086477 * A086479 A086480 A086481

Keyword

nonn

Author

Jason Earls and Amarnath Murthy, Jul 22 2003

Extensions

Edited and extended by Robert G. Wilson v, Jul 26 2003

Status

approved