Number of perfect-power divisors of superprimorials A006939.
A336417
Number of perfect-power divisors of superprimorials A006939.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =5a(4) =15a(5) =44a(6) =169a(7) =652a(8) =3106a(9) =15286a(10) =89933a(11) =532476a(12) =3698650a(13) =25749335a(14) =204947216a(15) =1636097441a(16) =14693641859a(17) =132055603656
External references
- oeis: A336417