Number of integers k not exceeding 2^n such that the cube of number of divisors [A000005(k)] is larger than k.

A056764

Number of integers k not exceeding 2^n such that the cube of number of divisors [A000005(k)] is larger than k.

Terms

    a(0) =1a(1) =3a(2) =7a(3) =13a(4) =24a(5) =48a(6) =78a(7) =138a(8) =248a(9) =385a(10) =633a(11) =1032a(12) =1523a(13) =2324a(14) =3470a(15) =4856a(16) =6844a(17) =9369a(18) =12283a(19) =15920a(20) =20001a(21) =24335a(22) =28984a(23) =33563a(24) =37868a(25) =41735a(26) =44946a(27) =47413a(28) =49143a(29) =50262

External references