Number of perfect powers (in A001597) that do not exceed primorial A002110(n).
A380337
Number of perfect powers (in A001597) that do not exceed primorial A002110(n).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =7a(4) =19a(5) =63a(6) =208a(7) =802a(8) =3344a(9) =15576a(10) =82368a(11) =453834a(12) =2743903a(13) =17510668a(14) =114616907a(15) =785002449a(16) =5711892439a(17) =43861741799a(18) =342522899289
External references
- oeis: A380337