OFFSET
0,6
EXAMPLE
Triangle starts:
0,
0, 1,
0, 1, 2,
0, 1, 2, 4,
0, 1, 2, 4, 7,
0, 1, 2, 4, 7, 12,
...
CROSSREFS
KEYWORD
AUTHOR
Roger L. Bagula, Mar 07 2006
EXTENSIONS
Edited by Joerg Arndt, Nov 20 2016
STATUS
approved