

A059692


Table of carryless products i * j, i>=0, j>=0, read by antidiagonals.


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, 9, 8, 5, 0, 0, 6, 0, 2, 2, 0, 6, 0, 0, 7, 2, 5, 6, 5, 2, 7, 0, 0, 8, 4, 8, 0, 0, 8, 4, 8, 0, 0, 9, 6, 1, 4, 5, 4, 1, 6, 9, 0, 0, 10, 8, 4, 8, 0, 0, 8, 4, 8, 10, 0, 0, 11, 20, 7, 2, 5, 6, 5, 2, 7, 20, 11, 0, 0, 12, 22, 30, 6, 0, 2, 2, 0, 6
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

0,8


LINKS

Table of n, a(n) for n=0..100.
David Applegate, Marc LeBrun and N. J. A. Sloane, Carryless Arithmetic (I): The Mod 10 Version.
Index entries for sequences related to carryless arithmetic


EXAMPLE

Table begins:
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ...
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 ...
0, 2, 4, 6, 8, 0, 2, 4, 6, 8, 20, 22, 24, 26, 28, 20 ...
0, 3, 6, 9, 2, 5, 8, 1, 4, 7, 30, 33, 36, 39, 32, 35 ...
0, 4, 8, 2, 6, 0, 4, 8, 2, 6, 40, 44, 48, 42, 46, 40 ...
...
T(12*97)=954 since we have 12 X 97 = carryless sum of 900, (180 mod 100=)80, 70 and (14 mod 10=)4 = 954


CROSSREFS

Cf. A001477 for carryless 1 X n, A004520 for carryless 2 X 10 base 10, A055120 for carryless 9 X n, A008592 for carryless 10 X n.
Sequence in context: A057893 A048720 A067138 * A336225 A004247 A271916
Adjacent sequences: A059689 A059690 A059691 * A059693 A059694 A059695


KEYWORD

nonn,base,tabl


AUTHOR

Henry Bottomley, Feb 19 2001


EXTENSIONS

Minor edits by N. J. A. Sloane, Aug 24 2010


STATUS

approved



