%I #14 Aug 08 2021 08:38:27
%S 0,0,0,0,1,1,1,1,4,2,2,3,1,3,6,7,5,5,4,8,5,5,10,9,6,4,5,7,8,9,6,8,8,6,
%T 8,7,5,8,9,10,13,7,10,9,8,9,8,7,7,11,11,14,13,14,15,15,8,9,12,5,17,15,
%U 9,12,9,10,5,8,9,14,12,16,15,12,9,16,18,12,11
%N a(n) is the number of primes q less than n-th prime p for which the Euclidean algorithm for p,q has exactly 3 nonzero remainders.
%e For prime(9)=23, the primes counted are 5,13,17,19.
%Y Cf. A049848, A049850.
%K nonn
%O 1,9
%A _Clark Kimberling_
%E More terms from _Sean A. Irvine_, Aug 07 2021