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A057892
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Negabinary numbral addition table.
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2
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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; internal format)
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OFFSET
| 0,4
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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).
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REFERENCES
| A. Frosini and S. Rinaldi, On the Sequence A079500 and Its Combinatorial Interpretations, Journal of Integer Sequences, Vol. 9 (2006), Article 06.3.1.
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EXAMPLE
| a(4)=6 since a(4) corresponds to the table entry for [1]+[1]=1+1=2=4-2=[6]
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CROSSREFS
| A005351, A005352, A057893, A057894.
Sequence in context: A062539 A171898 A110218 * A115009 A151944 A073094
Adjacent sequences: A057889 A057890 A057891 * A057893 A057894 A057895
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KEYWORD
| easy,nonn,tabl
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AUTHOR
| Marc LeBrun (mlb(AT)well.com), Sep 25 2000
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