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A185694 Eigensequence for the Moebius mu triangle A152904. 8

%I #15 Oct 02 2022 17:44:08

%S 1,-1,2,-2,3,-2,1,4,-10,22,-36,56,-72,84,-71,22,99,-311,654,-1122,

%T 1702,-2267,2611,-2312,795,2789,-9352,19802,-34442,52436,-70521,81869,

%U -74248,29099,79012,-279732,600894,-1054809,1616669,-2190772,2567994

%N Eigensequence for the Moebius mu triangle A152904.

%C First column of the inverse of the number triangle T(n,k)=if(k<n, -A152904(n-1,k), if(k=n,1,0)).

%H Reinhard Zumkeller, <a href="/A185694/b185694.txt">Table of n, a(n) for n = 0..1000</a>

%F G.f.: 1 / (1 + Sum_{k>=1} mu(k)*x^k). - _Ilya Gutkovskiy_, Oct 02 2022

%o (Haskell)

%o a185694 n = a185694_list !! (n-1)

%o a185694_list = 1 : f [1] where

%o f xs = y : f (y : xs) where

%o y = sum $ zipWith (*) xs $ map negate a008683_list

%o -- _Reinhard Zumkeller_, Nov 03 2015

%Y Cf. A008683, A073776.

%K sign

%O 0,3

%A _Paul Barry_, Feb 10 2011

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Last modified April 18 22:18 EDT 2024. Contains 371782 sequences. (Running on oeis4.)