A374473 Numbers k such that bigomega(k) and A064547(k) are not 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).

2, 3, 4, 5, 7, 8, 9, 11, 12, 13, 16, 17, 18, 19, 20, 23, 24, 25, 27, 28, 29, 30, 31, 32, 37, 40, 41, 42, 43, 44, 45, 47, 48, 49, 50, 52, 53, 54, 56, 59, 60, 61, 63, 66, 67, 68, 70, 71, 72, 73, 75, 76, 78, 79, 80, 81, 83, 84, 88, 89, 90, 92, 96, 97, 98, 99, 101, 102, 103, 104, 105, 107, 108, 109, 110, 112, 113, 114

Offset: 1

Author

Antti Karttunen, Jul 14 2024

Keywords

• nonn

Links

• Antti Karttunen, Table of n, a(n) for n = 1..12000

Crossrefs

Cf. A001222, A064547, A374471, A374472 (complement).

Indices of odd terms in A374470.

Union of A000028 and A026424. Their intersection A374467 is a subsequence.

Programs

PARI

isA374473(n) = !A374471(n);