OFFSET
0,11
LINKS
Reinhard Zumkeller, Table of n, a(n) for n = 0..10000
PROG
(Haskell)
a020951 n = a020951_list !! n
a020951_list = 1 : ws where
ws = 0 : 1 : concat (zipWith (\u v -> [u, u + v]) ws $ tail ws)
-- Reinhard Zumkeller, Jul 19 2013, Mar 13 2013
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved