A111740 - OEIS

%I #2 Mar 30 2012 17:26:19

%S 1,5,1,3,1,3,1,5,7,1,3,11,3,3,3,7,7,3,5,1,3,9,9,7,11,1,3,1,5,3,3,1,1,

%T 5,1,5,3,3,25,15,1,3,3,5,3,5,5,3,7,15,3,1,3,3,7,7,1,11,5,3,3,3,3,15,

%U 17,3,9,3,1,5,9,7,3,15,5,3,7,5,1,27,7,3,1,3,5,3,1,3,3,5,3,1,11,1,9,3,1,9,17

%N Distance between k*(n-th prime) and next prime, k=8 case.

%C Other cases: k=1 A001223 Differences between consecutive primes, k=2 A059787, k=3 A114245, k=4 A114246, k=5 A114247, k=6 A114248, k=7 A111739, k=9 A111741, k=10 A111742.

%e a(1)=1 because prime(1)=2 and 8*2+1=17 (prime).

%Y Cf. A001223, A059787, A114245, A114246, A114247, A114248, A111739, A111741, A111742.

%K nonn

%O 1,2

%A _Zak Seidov_, Nov 18 2005