login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A295881 Reversing binary representation of the deficiency of n, A033879(n). 5
1, 1, 2, 1, 4, 0, 14, 1, 13, 2, 26, 12, 28, 4, 14, 1, 16, 5, 50, 6, 26, 8, 62, 20, 55, 26, 22, 0, 44, 20, 38, 1, 50, 22, 62, 53, 100, 16, 62, 30, 104, 20, 122, 4, 28, 52, 118, 36, 121, 11, 38, 14, 84, 20, 110, 24, 98, 42, 74, 80, 76, 44, 62, 1, 118, 20, 194, 26, 122, 12, 206, 85, 200, 98, 42, 28, 74, 20, 214, 46, 121 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

For all n, A010060(a(A005100(n)) = 1 and A010060(a(A023196(n))) = 0. That is, for the deficient numbers a(n) is an odious number (A000069) and for the nondeficient numbers a(n) is an evil number (A001969).

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..16384

FORMULA

If A033879(n) <= 0, a(n) = A048724(-A033879(n)), otherwise a(n) = A065621(A033879(n)).

For all n >= 1, A065620(a(n)) = A033879(n).

PROG

(Scheme) (define (A295881 n) (let ((x (A033879 n))) (if (<= x 0) (A048724 (- x)) (A065621 x))))

CROSSREFS

Cf. A005100, A023196, A033879, A033880, A048724, A065620, A065621, A286449, A295882.

Cf. A000396 (gives the positions of zeros).

Sequence in context: A122161 A067164 A140505 * A117971 A220420 A190616

Adjacent sequences:  A295878 A295879 A295880 * A295882 A295883 A295884

KEYWORD

nonn

AUTHOR

Antti Karttunen, Dec 04 2017

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 26 06:05 EDT 2020. Contains 337346 sequences. (Running on oeis4.)