OFFSET
1,4
COMMENTS
Obviously all the terms are odd.
EXAMPLE
The arithmetic progression in triangular form:
1
1 2
1 2 3
1 4 7 10
1 8 15 22 29
1 6 11 16 21 26
...
CROSSREFS
KEYWORD
nonn
AUTHOR
Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Jun 13 2003
EXTENSIONS
More terms from David Wasserman, Jan 03 2005
Example triangle corrected by Nathaniel Johnston, Jun 25 2011
STATUS
approved