A076297 Prime(n)+ s*n is prime, s=2.

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

Offset

1,1

Comments

See also A064402 (s=1), A076298 (s=3), A076299 (s=4), A076300 (s=5).

Links

G. C. Greubel, Table of n, a(n) for n = 1..10000

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

Cf. A064402, A076298, A076299, A076300.

Sequence in context: A027700 A262300 A202105 * A174184 A278485 A279064

Adjacent sequences: A076294 A076295 A076296 * A076298 A076299 A076300

Keyword

nonn

Author

Zak Seidov, Oct 05 2002

Status

approved