OFFSET
1,1
COMMENTS
Corresponding greater members: A071699(n).
LINKS
Reinhard Zumkeller, Table of n, a(n) for n = 1..10000
Alexei Kourbatov and Marek Wolf, Predicting maximal gaps in sets of primes, arXiv preprint arXiv:1901.03785 [math.NT], 2019.
FORMULA
a(n) = 2*A241557(n+1)-1. - Hilko Koning, Nov 06 2019
MATHEMATICA
Transpose[Select[Table[4n+{3, 5}, {n, 0, 1000}], AllTrue[#, PrimeQ]&]][[1]] (* The program uses the AllTrue function from Mathematica version 10 *) (* Harvey P. Dale, Jan 16 2015 *)
PROG
(Haskell)
a071698 n = a071698_list !! (n-1)
a071698_list = [x | x <- [3, 7 ..], a010051' x == 1, a010051' (x+2) == 1]
-- Reinhard Zumkeller, Aug 05 2014
(Magma) [4*k+3:k in [0..1000]|IsPrime(4*k+3) and IsPrime(4*k+5)]; // Marius A. Burtea, Nov 06 2019
CROSSREFS
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Jun 04 2002
STATUS
approved