1,1

Table of n, a(n) for n=1..61.

If n=15 then 10*n - 131 = 19 (prime).

If n=49 then 10*n - 131 = 359 (prime).

(MAGMA) [n: n in [14..200] | IsPrime(10*n-131)]; - Vincenzo Librandi, Nov 13 2010

(PARI) is(n)=isprime(10*n-131) \\ Charles R Greathouse IV, Jun 13 2017

Sequence in context: A281879 A114841 A031168 * A241750 A039689 A332515

Adjacent sequences: A108853 A108854 A108855 * A108857 A108858 A108859

nonn,easy

Parthasarathy Nambi, Jul 11 2005

approved