OFFSET
0,1
COMMENTS
Definition unclear, see comments in A049057. - Sean A. Irvine, Jul 17 2021
EXAMPLE
Factorizations 2^2*13, 2^2*3*13, 2^2*3*5*13, 2^5*3*13, 2^2*3*5*13*17, 2^9*3*13, 2^9*3*5*61
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved