OFFSET
1,2
EXAMPLE
1
2 4
3 9 15
8 12 16 20
5 25 35 45 55
6 18 24 30 36 42
7 21 49 63 77 91 105
...
CROSSREFS
KEYWORD
AUTHOR
Amarnath Murthy, Nov 30 2004
EXTENSIONS
Extended by Ray Chandler, Dec 10 2004
STATUS
approved