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 A206475 First differences of A206369. 3
 0, 1, 1, 1, -2, 4, -1, 2, -3, 6, -4, 6, -6, 2, 3, 5, -9, 11, -6, 0, -2, 12, -12, 11, -9, 8, -2, 10, -20, 22, -9, -1, -4, 8, -3, 15, -18, 6, -4, 20, -28, 30, -12, -2, -6, 24, -24, 21, -22, 11, 4, 16, -32, 20, -10, 6, -8, 30, -34, 36, -30, 12, 1, 5, -28, 46 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,5 COMMENTS a(A206368(n)) = 0. LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..10000 FORMULA a(n) = A206369(n+1) - A206369(n). MATHEMATICA (* b = A206369 *) b[n_] := n*DivisorSum[n, LiouvilleLambda[#]/# &]; Array[b, 100] // Differences (* Jean-François Alcover, Dec 04 2017 *) PROG (Haskell) a206475 n = a206475_list !! (n-1) a206475_list = zipWith (-) (tail a206369_list) a206369_list CROSSREFS Sequence in context: A053450 A215905 A269065 * A227184 A124911 A132954 Adjacent sequences:  A206472 A206473 A206474 * A206476 A206477 A206478 KEYWORD sign AUTHOR Reinhard Zumkeller, Feb 08 2012 STATUS approved

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Last modified September 28 02:01 EDT 2020. Contains 337388 sequences. (Running on oeis4.)