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

1,1

Links

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

Prog

(PARI) isA374473(n) = !A374471(n);

Crossrefs

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

Indices of odd terms in A374470.

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

Sequence in context: A285901 A246716 A390278 * A362618 A371782 A363597

Adjacent sequences: A374470 A374471 A374472 * A374474 A374475 A374476

Keyword

nonn

Author

Antti Karttunen, Jul 14 2024

Status

approved