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Numbers n such that omega(n) = gpf(n) mod spf(n), where omega=A001221, gpf=A006530 and spf=A020639.
2

%I #5 Mar 30 2012 18:50:42

%S 1,15,33,35,45,51,69,75,85,87,99,123,135,141,143,153,159,161,175,177,

%T 185,207,213,225,235,245,249,259,261,267,297,303,321,323,335,339,363,

%U 369,375,393,405,411,423,425,447,455,459,477,485,501,519,531,533,535

%N Numbers n such that omega(n) = gpf(n) mod spf(n), where omega=A001221, gpf=A006530 and spf=A020639.

%C A069859(a(n)) = A001221(a(n));

%C A064900 is a subsequence.

%Y Cf. A089967.

%K nonn

%O 1,2

%A _Reinhard Zumkeller_, Nov 17 2003