Number of n-digit numbers having exactly n prime factors (counted with multiplicity).

A124033

Number of n-digit numbers having exactly n prime factors (counted with multiplicity).

Terms

    a(0) =4a(1) =31a(2) =225a(3) =1563a(4) =10222a(5) =63030a(6) =374264a(7) =2160300a(8) =12196405a(9) =67724342a(10) =371233523a(11) =2014305995a(12) =10841722966a(13) =57974736592a(14) =308361428628

External references