A082287: A001221(1)=0 hence 1'd be absent in A082287 ?!
zak seidov
zakseidov at yahoo.com
Sat Feb 16 12:52:17 CET 2008
Neil, Reinhard, seqfans,
Isn't it more logical (and fun)
to drop 1,
and change %N to:
%N A082287 n>0 appears omega(n) times, where
omega(n)=A001221(n) is the number of distinct
prime factors of n; 1 is absent, or,
"1 appears "zero" times", because omega(1)=0.
(*as in OEIS at present*)
%I A082287
%S A082287 1,2,3,4,5,6,6,7,8,9,10,10,11,12,12,
%N A082287 n>1 appears omega(n) times, where
omega(n)=A001221(n) is the number of distinct
prime factors of n, a(1)=1.
%O A082287 1,2
%A A082287 Reinhard Zumkeller
(reinhard.zumkeller(AT)lhsystems.com), Apr 07 2003
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