%I #19 Sep 17 2022 19:30:07
%S 0,1,2,4,5,8,14,19,38
%N Prime indices of the Heegner numbers (A003173).
%F a(n) = primepi(A003173(n)).
%Y Cf. A000720, A003173.
%K nonn,fini,full
%O 1,3
%A _Alexander R. Povolotsky_, Sep 16 2022
