Number of k's less than or equal to 10^n such that there are middle divisors of k (A071562).

A071541

Number of k's less than or equal to 10^n such that there are middle divisors of k (A071562).

Terms

    a(0) =6a(1) =43a(2) =336a(3) =2932a(4) =26870a(5) =252756a(6) =2409731a(7) =23169860a(8) =224059958a(9) =2175865640

External references