A074910 - OEIS

%I #12 Feb 02 2025 16:32:22

%S 1,1,0,0,-1,0,-1,0,0,1,-1,0,1,1,0,0,-1,0,1,0,0,0,1,0,0,1,0,0,1,0,1,0,

%T 0,1,-1,0,1,-1,0,0,-1,0,-1,0,0,1,-1,0,0,0,0,0,-1,0,1,0,0,1,-1,0,1,-1,

%U 0,0,-1,0,1,0,0,-1,-1,0,1,-1,0,0,1,0,-1,0

%N Moebius function applied to A053422.

%F a(n) = A008683(A053422(n)).

%p seq(numtheory[mobius](n*(10^n - 1)/9), n=1..38);

%Y Cf. A008683, A053422.

%K easy,sign,changed

%O 1

%A _Jani Melik_, Oct 01 2002

%E More terms from _Sean A. Irvine_, Feb 02 2025