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A374472 Numbers k such that bigomega(k) and A064547(k) are both even, where A064547 is the count of 1-bits in the exponents of the prime factorization of n, and bigomega is the number of prime factors of n (with multiplicity).

%I A374472 #7 Jul 14 2024 15:16:35
%S A374472 1,6,10,14,15,21,22,26,33,34,35,36,38,39,46,51,55,57,58,62,64,65,69,
%T A374472 74,77,82,85,86,87,91,93,94,95,100,106,111,115,118,119,122,123,129,
%U A374472 133,134,141,142,143,144,145,146,155,158,159,161,166,177,178,183,185,187,194,196,201,202,203,205,206,209,210,213
%N A374472 Numbers k such that bigomega(k) and A064547(k) are both even, where A064547 is the count of 1-bits in the exponents of the prime factorization of n, and bigomega is the number of prime factors of n (with multiplicity).
%H A374472 Antti Karttunen, <a href="/A374472/b374472.txt">Table of n, a(n) for n = 1..12000</a>
%o A374472 (PARI) isA374472 = A374471;
%Y A374472 Cf. A001222, A064547, A374471 (characteristic function), A374473 (complement).
%Y A374472 Indices of even terms in A374470.
%Y A374472 Intersection of A000379 and A028260.
%K A374472 nonn
%O A374472 1,2
%A A374472 _Antti Karttunen_, Jul 14 2024