OFFSET
1,3
COMMENTS
Row n and rows n+6i are equal.
EXAMPLE
Array begins:
0 1 2 3 4 5 6
0 3 6 2 5 1 4
0 2 4 6 1 3 5
0 6 5 4 3 2 1
0 4 1 5 2 6 3
0 5 3 1 6 4 2
...
CROSSREFS
KEYWORD
nonn,easy,tabf
AUTHOR
Jon Perry, Jan 14 2003
STATUS
approved