Number of ways to choose a divisor with distinct prime exponents of a divisor with distinct prime exponents of n!.

A336425

Number of ways to choose a divisor with distinct prime exponents of a divisor with distinct prime exponents of n!.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =5a(4) =24a(5) =38a(6) =132a(7) =195a(8) =570a(9) =1588a(10) =4193a(11) =6086a(12) =14561a(13) =19232a(14) =37142a(15) =106479a(16) =207291a(17) =266871a(18) =549726a(19) =674330a(20) =1465399a(21) =3086598a(22) =5939574a(23) =7182133a(24) =12324512a(25) =28968994a(26) =46819193a(27) =82873443a(28) =165205159a(29) =196666406

External references