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A076297 Prime(n)+ s*n is prime, s=2. 7
2, 3, 7, 9, 11, 12, 13, 14, 18, 24, 27, 28, 29, 30, 36, 38, 43, 44, 53, 54, 55, 57, 60, 63, 64, 65, 66, 72, 74, 80, 84, 90, 93, 102, 103, 108, 110, 111, 117, 118, 125, 126, 135, 138, 141, 143, 148, 150, 155, 156, 162, 165, 171, 174, 180, 183, 186, 188, 190, 198 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
See also A064402 (s=1), A076298 (s=3), A076299 (s=4), A076300 (s=5).
LINKS
EXAMPLE
3 is OK because p(3) + 2*3 = 5 + 6 = 11 is prime.
MATHEMATICA
Select[Range[200], PrimeQ[Prime[#]+2#]&] (* Harvey P. Dale, Sep 01 2015 *)
PROG
(Magma) [n: n in [0..500]| IsPrime(NthPrime(n) +2*n)]; // G. C. Greubel, May 04 2018
(PARI) select(x->isprime(x), vector(500, n, prime(n) + 2*n), 1) \\ G. C. Greubel, May 04 2018
CROSSREFS
Sequence in context: A027700 A262300 A202105 * A174184 A278485 A279064
KEYWORD
nonn
AUTHOR
Zak Seidov, Oct 05 2002
STATUS
approved

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Last modified July 24 23:57 EDT 2024. Contains 374585 sequences. (Running on oeis4.)