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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.
2
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
4,1
LINKS
CROSSREFS
Column k=4 of A079025.
Sequence in context: A271260 A270734 A271411 * A195861 A001939 A100534
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Aug 23 2019
STATUS
approved