A057893 Negabinary numbral multiplication table.

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

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