A080324 - OEIS

%I #12 Aug 25 2023 08:51:36

%S 1,2,6,10,14,15,21,22,26,30,33,34,35,38,39,42,46,51,55,57,58,62,65,66,

%T 69,70,74,77,78,82,85,86,87,91,93,94,95,102,106,110,111,114,115,118,

%U 119,122,123,129,130,133,134,138,141,142,143,145,146,154,155,158,159,161

%N Union of even squarefree numbers (A039956) and squarefree numbers for which the number of prime factors is even (A030229).

%C k is a term of this sequence iff mu(k)^k > 0 respectively iff A080323(k) > 0.

%Y Cf. A008683, A030229, A039956, A056912, A080323.

%K nonn

%O 1,2

%A _Reinhard Zumkeller_, Feb 14 2003

%E Definition corrected by _Georg Fischer_ at the suggestion of _Amiram Eldar_, Aug 17 2023