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

 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 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 * A334188 A265993 A115009 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.

Last modified April 17 12:40 EDT 2021. Contains 343063 sequences. (Running on oeis4.)