Number of divisors of n! with distinct prime multiplicities.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =7a(5) =10a(6) =20a(7) =27a(8) =48a(9) =86a(10) =147a(11) =195a(12) =311a(13) =390a(14) =595a(15) =1031a(16) =1459a(17) =1791a(18) =2637a(19) =3134a(20) =4747a(21) =7312a(22) =10766a(23) =12633a(24) =16785a(25) =26377a(26) =36142a(27) =48931a(28) =71144a(29) =82591