[go: up one dir, main page]

login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
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). 4
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 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
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: A284946 A285901 A246716 * A362618 A371782 A363597
KEYWORD
nonn
AUTHOR
Antti Karttunen, Jul 14 2024
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 29 18:55 EDT 2024. Contains 375518 sequences. (Running on oeis4.)