OFFSET
1,1
EXAMPLE
3+1= 4, 3*1*5 +1 = 16, 3*1*5*8 +1 = 121 etc. are squares.
CROSSREFS
KEYWORD
nonn
AUTHOR
Amarnath Murthy, May 22 2004
EXTENSIONS
4 more terms from R. J. Mathar, Jul 27 2007
More terms from Max Alekseyev, Apr 26 2010
STATUS
approved