OFFSET
1,1
EXAMPLE
x = 596, d(596) = 6, Sigma(596) = 1050, Sigma(596+6) = Sigma(602) = 1056 = Sigma(596)+d(596)
CROSSREFS
KEYWORD
nonn
AUTHOR
Labos Elemer, Aug 23 2001
EXTENSIONS
Two more terms from Dean Hickerson, Aug 24, 2001
a(10)-a(23) from Donovan Johnson, Nov 30 2008
STATUS
approved