OFFSET
1,1
COMMENTS
LINKS
Reinhard Zumkeller, Table of n, a(n) for n = 1..10000
MATHEMATICA
#[[2]]-#[[1]]&/@Partition[Table[n*MoebiusMu[n], {n, 70}], 2, 1] (* Harvey P. Dale, Apr 17 2016 *)
PROG
(Haskell)
import Data.List (genericIndex)
a261869 n = genericIndex a261869_list (n - 1)
a261869_list = zipWith (-) (tail a055615_list) a055615_list
CROSSREFS
KEYWORD
sign
AUTHOR
Reinhard Zumkeller, Sep 04 2015
STATUS
approved