A014666 Erroneous version of A027435.

1, 2, 4, 6, 10, 11, 17, 21, 27, 29, 39, 42, 54, 58, 63, 71, 87, 90, 108, 114, 121, 126

Offset: 1

Author

N. J. A. Sloane

Keywords

• dead

Comments

Former title: Partial sums of A014665. - Sean A. Irvine, Nov 15 2018

References

• S. W. Golomb, personal communication, Svalbard, Norway, 7/97.

Formula

For n>1: # of positive integers u <= n(n-1) such that p^H_p(u)<=n for all p<=u, where H_p(u) = highest power of p dividing u.