A309919 Total number of divisors d of m (counted with multiplicity), such that the prime signature of d is a partition of four and m runs through the set of least numbers whose prime signature is a partition of n.

5, 20, 65, 160, 371, 756, 1485, 2701, 4822, 8144, 13558, 21756, 34449, 53044, 80874, 120573, 178215, 258897, 373069, 530068, 748026, 1043001, 1445321, 1983124, 2705411, 3659491, 4924840, 6578409, 8746089, 11553224, 15194682, 19870115, 25881012, 33537548

Offset: 4

Author

Alois P. Heinz, Aug 23 2019

Keywords

• nonn

Links

• Alois P. Heinz, Table of n, a(n) for n = 4..4000

Crossrefs

Column k=4 of A079025.