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n>1 appears bigomega(n) times, where bigomega(n)=A001222(n) is the number of prime factors of n (with repetition), a(1)=1.
6

%I #4 Mar 30 2012 18:50:32

%S 1,2,3,4,4,5,6,6,7,8,8,8,9,9,10,10,11,12,12,12,13,14,14,15,15,16,16,

%T 16,16,17,18,18,18,19,20,20,20,21,21,22,22,23,24,24,24,24,25,25,26,26,

%U 27,27,27,28,28,28,29,30,30,30,31,32,32,32,32,32,33,33,34,34,35,35,36,36

%N n>1 appears bigomega(n) times, where bigomega(n)=A001222(n) is the number of prime factors of n (with repetition), a(1)=1.

%C A027746(n) divides a(n), a(n)=A027746(n) iff a(n) is prime; a(A022559(n)+1)=n.

%C A000040(A112798(n)) is a prime factor of a(n) for n>1. - _Reinhard Zumkeller_, Feb 03 2008

%Y Cf. A082287.

%K nonn

%O 1,2

%A _Reinhard Zumkeller_, Apr 07 2003