OFFSET
1,1
COMMENTS
LINKS
Graeme L. Cohen and Herman J. J. te Riele, Iterating the sum-of-divisors function Experimental Mathematics, 5 (1996), p 94.
PROG
(Haskell)
a111227 n = a111227_list !! (n-1)
a111227_list = filter (\x -> a019294 x > x) [1..]
-- Reinhard Zumkeller, Aug 02 2012
CROSSREFS
KEYWORD
hard,nonn
AUTHOR
Lambert Klasen (lambert.klasen(AT)gmx.net), Oct 26 2005
STATUS
approved