OFFSET
1,2
LINKS
Reinhard Zumkeller, Table of n, a(n) for n = 1..10000
Eric Weisstein's World of Mathematics, Hofstadter Sequences
PROG
(Haskell)
a139127 1 = 1
a139127 n = head [y | let z = a005244 n + 1,
y <- reverse $ takeWhile (<= z `div` a020639 z) a005244_list,
z `mod` y == 0]
-- Reinhard Zumkeller, Feb 26 2013
CROSSREFS
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Apr 09 2008
STATUS
approved