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A057893 Negabinary numbral multiplication table. 2
0, 0, 0, 0, 1, 0, 0, 2, 2, 0, 0, 3, 4, 3, 0, 0, 4, 6, 6, 4, 0, 0, 5, 8, 1, 8, 5, 0, 0, 6, 10, 12, 12, 10, 6, 0, 0, 7, 12, 15, 16, 15, 12, 7, 0, 0, 8, 14, 2, 20, 20, 2, 14, 8, 0, 0, 9, 16, 13, 24, 105, 24, 13, 16, 9, 0, 0, 10, 18, 24, 28, 30, 30, 28, 24, 18, 10, 0, 0, 11, 20, 27, 32, 19, 4 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,8

COMMENTS

Units are [1]=1 and [3]=-1.

LINKS

Table of n, a(n) for n=0..84.

EXAMPLE

a(17)=6 since a(17) corresponds to the table entry for [3]+[2]=-1*-2=2=4-2=[6]

CROSSREFS

Cf. A005351, A005352, A057892, A057894.

Sequence in context: A190174 A263139 A063711 * A048720 A067138 A059692

Adjacent sequences:  A057890 A057891 A057892 * A057894 A057895 A057896

KEYWORD

easy,nonn,tabl

AUTHOR

Marc LeBrun, Sep 25 2000

STATUS

approved

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Last modified February 23 02:43 EST 2018. Contains 299473 sequences. (Running on oeis4.)