OFFSET
1,1
COMMENTS
Multiplicative because A092673 is. - Andrew Howroyd, Jul 27 2018
LINKS
Antti Karttunen, Table of n, a(n) for n = 1..10000
FORMULA
a(2*n) = sign(mu(2*n) - mu(n)); a(2*n + 1) = mu(2*n + 1). - Andrew Howroyd, Jul 27 2018
PROG
(PARI) a(n)=sign(moebius(n) - if(n%2, 0, moebius(n/2))) \\ Andrew Howroyd, Jul 27 2018
CROSSREFS
KEYWORD
sign,mult
AUTHOR
Jon Perry, Mar 31 2004
STATUS
approved