OFFSET
1,5
EXAMPLE
0
0 0
0 3 0
0 0 4 0
0 5 5 5 0
0 0 0 0 6 0
0 7 7 21 7 7 0
PROG
(PARI) for(j=1, 13, for(k=1, j, print1((j^k)%(j*k), ", ")))
CROSSREFS
KEYWORD
AUTHOR
Amarnath Murthy, Jul 04 2004
EXTENSIONS
Edited and extended by Klaus Brockhaus, Jul 16 2004
STATUS
approved