OFFSET
1,2
LINKS
PROG
(Haskell)
a230287 n = a230287_list !! (n-1)
a230287_list = zipWith (-) (tail a230286_list) a230286_list
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Reinhard Zumkeller and N. J. A. Sloane, Oct 16 2013
STATUS
approved