login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A057892 Negabinary numbral addition table. 2
0, 1, 1, 2, 6, 2, 3, 3, 3, 3, 4, 0, 12, 0, 4, 5, 5, 13, 13, 5, 5, 6, 26, 6, 18, 6, 26, 6, 7, 7, 7, 7, 7, 7, 7, 7, 8, 4, 0, 4, 24, 4, 0, 4, 8, 9, 9, 1, 1, 25, 25, 1, 1, 9, 9, 10, 14, 10, 6, 26, 30, 26, 6, 10, 14, 10, 11, 11, 11, 11, 27, 27, 27, 27, 11, 11, 11, 11, 12, 8, 52, 8, 12, 24, 36, 24 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,4

COMMENTS

Every negabinary numbral appears infinitely often (since every signed integer can be represented as a sum of two signed integers in infinitely many ways).

LINKS

Table of n, a(n) for n=0..85.

A. Frosini and S. Rinaldi, On the Sequence A079500 and Its Combinatorial Interpretations, J. Integer Seq., Vol. 9 (2006), Article 06.3.1.

EXAMPLE

a(4)=6 since a(4) corresponds to the table entry for [1]+[1]=1+1=2=4-2=[6].

CROSSREFS

Cf. A005351, A005352, A057893, A057894.

Sequence in context: A320575 A110218 A316259 * A265993 A115009 A151944

Adjacent sequences:  A057889 A057890 A057891 * A057893 A057894 A057895

KEYWORD

easy,nonn,tabl

AUTHOR

Marc LeBrun, Sep 25 2000

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 October 14 17:43 EDT 2019. Contains 328022 sequences. (Running on oeis4.)