OFFSET
1,2
EXAMPLE
a(2) = 4+5 = 9= 3^2. a(8)= 1+2+3+4+5+6+7+8 = 36 = 6^2.
CROSSREFS
KEYWORD
nonn
AUTHOR
Amarnath Murthy, Oct 09 2002
EXTENSIONS
More terms from David Wasserman, Apr 02 2005
STATUS
approved