a(n) is the denominator of the asymptotic density of numbers whose third smallest prime divisor is prime(n).

A378721

a(n) is the denominator of the asymptotic density of numbers whose third smallest prime divisor is prime(n).

Terms

    a(0) =1a(1) =1a(2) =30a(3) =30a(4) =165a(5) =15015a(6) =36465a(7) =62985a(8) =7436429a(9) =11849255a(10) =73465381a(11) =33426748355

External references