OFFSET
1,2
COMMENTS
Differs from A068938 in having 1 and 4 and lacking 80.
Includes all squarefree numbers.
EXAMPLE
The prime indices of 80 are {1,1,1,1,3}, with 5 parts and 2 distinct parts, and 2*2 < 5, so 80 is not in the sequence.
MATHEMATICA
Select[Range[100], 2*PrimeNu[#]>=PrimeOmega[#]&]
CROSSREFS
KEYWORD
nonn
AUTHOR
Gus Wiseman, Mar 16 2023
STATUS
approved