OFFSET
1,1
EXAMPLE
a(2)=8, which is even with odd number of prime factors i.e. 3.
MATHEMATICA
Select[Range[2, 244, 2], OddQ[PrimeOmega[#]] &] (* Jayanta Basu, Jun 26 2013 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Shyam Sunder Gupta, Feb 16 2002
STATUS
approved