Total number of perfect powers > 1 below 10^n, counting multiple representations separately.

A089580

Total number of perfect powers > 1 below 10^n, counting multiple representations separately.

Terms

    a(0) =3a(1) =15a(2) =49a(3) =143a(4) =406a(5) =1174a(6) =3507a(7) =10674a(8) =32965a(9) =102716a(10) =321797a(11) =1011533a(12) =3186389a(13) =10050743a(14) =31730134a(15) =100228040a(16) =316713623a(17) =1001037546a(18) =3164497349a(19) =10004755374a(20) =31632975598a(21) =100021893194a(22) =316274794666

External references