OFFSET
1,6
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
FORMULA
Additive with a(p^e) = 2 - e. - Amiram Eldar, Mar 26 2023
Sum_{k=1..n} a(k) = n * log(log(n)) + c * n + O(n/log(n)), where c = 2*A077761 - A083342 = A077761 - A136141 = -0.511659... . - Amiram Eldar, Oct 01 2023
MATHEMATICA
Table[2*PrimeNu[n]-PrimeOmega[n], {n, 100}]
CROSSREFS
KEYWORD
sign,easy
AUTHOR
Gus Wiseman, Mar 16 2023
STATUS
approved