251717domain: NAppears in sequencesNumbers k such that prime(k) == 9 (mod k).at n=9A023151Number of solutions to x*frac[p(x)/x]<=Log[n] or A004648(n)<=Log[n].at n=40A099641G.f. A(x) satisfies A(x) = 1/((1 - x) * (1 - x*A(x) - x^4*A'''(x))).at n=6A385759