OFFSET
1,1
LINKS
Harry J. Smith, Table of n, a(n) for n = 1..1000
EXAMPLE
a(2)=6, which is even with even number of prime factors, i.e., 2.
MATHEMATICA
Select[2*Range[200], EvenQ[PrimeOmega[#]]&] (* Harvey P. Dale, Mar 07 2015 *)
PROG
(PARI) { n=0; forstep (m=2, 10^9, 2, if (bigomega(m)%2 == 0, write("b063745.txt", n++, " ", m); if (n==1000, break)) ) } \\ Harry J. Smith, Aug 29 2009
CROSSREFS
KEYWORD
nonn
AUTHOR
Shyam Sunder Gupta, Feb 16 2002
STATUS
approved