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A051651 Primes of the form 30030*p + 1 where p is a prime. 1

%I #13 May 28 2018 09:39:56

%S 150151,330331,390391,870871,930931,1231231,1411411,1831831,2012011,

%T 2372371,2672671,3813811,4174171,4474471,5375371,5435431,5735731,

%U 5915911,8078071,9219211,10120111,10420411,11021011,11501491,12642631

%N Primes of the form 30030*p + 1 where p is a prime.

%C Generalization of A005385; can be called 30030-safe primes.

%F A002110(6)*p + 1 = 30030*p + 1 (prime).

%e 390391 is in the sequence because 390391 = 2*3*5*7*11*13*p + 1 where p=13.

%t Select[30030Prime[Range[100]]+1,PrimeQ] (* _Harvey P. Dale_, Dec 09 2010 *)

%Y Cf. A005384, A005385, A007693, A002110.

%K nonn

%O 1,1

%A _Labos Elemer_

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Last modified September 15 03:44 EDT 2024. Contains 375931 sequences. (Running on oeis4.)