OFFSET
0,3
COMMENTS
First column of the inverse of the number triangle T(n,k)=if(k<n, -A152904(n-1,k), if(k=n,1,0)).
LINKS
Reinhard Zumkeller, Table of n, a(n) for n = 0..1000
FORMULA
G.f.: 1 / (1 + Sum_{k>=1} mu(k)*x^k). - Ilya Gutkovskiy, Oct 02 2022
PROG
(Haskell)
a185694 n = a185694_list !! (n-1)
a185694_list = 1 : f [1] where
f xs = y : f (y : xs) where
y = sum $ zipWith (*) xs $ map negate a008683_list
-- Reinhard Zumkeller, Nov 03 2015
CROSSREFS
KEYWORD
sign
AUTHOR
Paul Barry, Feb 10 2011
STATUS
approved