OFFSET
1,2
LINKS
PROG
(Haskell)
import Data.List (elemIndex)
import Data.Maybe (fromJust)
a065307 n = (fromJust $ elemIndex n a065306_list) + 1
-- Reinhard Zumkeller, Jan 30 2012
CROSSREFS
KEYWORD
nice,nonn
AUTHOR
Klaus Strassburger (strass(AT)ddfi.uni-duesseldorf.de), Oct 29 2001
STATUS
approved