A086303 - OEIS

%I #8 Feb 20 2017 14:40:51

%S 2,4,8,14,16,22,26,28,32,38,44,46,52,56,58,64,68,74,82,86,88,92,94,98,

%T 112,116,122,124,134,136,142,148,152,158,164,166,176,178,182,184,196,

%U 208,212,214,218,224,226,236,242,248,254,256,262,266,268,278,292,296

%N Numbers n such that n+15 is prime.

%D M. Cerasoli, F. Eugeni and M. Protasi, Elementi di Matematica Discreta, Bologna 1988

%D Emanuele Munarini and Norma Zagaglia Salvi, Matematica Discreta, UTET, CittaStudiEdizioni, Milano 1997

%F a(n)=2*A089559(n).

%o (PARI) is(n)=isprime(n+15) \\ _Charles R Greathouse IV_, Feb 20 2017

%Y Cf. A089559.

%K easy,nonn

%O 1,1

%A _Giovanni Teofilatto_, Aug 29 2003

%E Extended by _Ray Chandler_, Nov 29 2003