A277693 - OEIS

A277693

Smallest k such that (k+i)*prime(n)#-1 is prime for i = 0, 1, 2, ..., n+1, n+2 where prime(n)# is the n-th primorial, n>1.

%I #25 Dec 24 2016 11:25:59

%S 1,12,33277,4177,278,3680912

%N Smallest k such that (k+i)*prime(n)#-1 is prime for i = 0, 1, 2, ..., n+1, n+2 where prime(n)# is the n-th primorial, n>1.

%H Pierre CAMI, <a href="/A277693/a277693.txt">PFGW Script</a>

%Y Cf. A002110, A277691.

%K nonn,hard,more

%O 2,2

%A _Pierre CAMI_, Nov 11 2016