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