login
Values of n such that 90n+11, 90n+13, 90n+17, 90n+19 are all primes.
0

%I #8 Sep 28 2013 03:12:48

%S 0,1,2,9,23,36,210,281,387,772,919,1087,1505,1841,2165,2415,2667,2751,

%T 2865,2963,3067,3270,3788,3936,4417,4468,4475,4578,4656,4676,4747,

%U 4937,5028,5194,5223,5300,5558,5964,6260,6510,6609,7023,7042,7373,7385,7835

%N Values of n such that 90n+11, 90n+13, 90n+17, 90n+19 are all primes.

%D A. Murthy, Some new Smarandache sequences, functions and partitions, Smarandache Notions Journal Vol. 11 N. 1-2-3 Spring 2000

%o (PARI) is(n) = isprime(90*n+11) && isprime(90*n+13) && isprime(90*n+17) && isprime(90*n+19); \\ _Michel Marcus_, Sep 28 2013

%K easy,nonn

%O 1,3

%A _Felice Russo_, Dec 17 1999