%I #9 Mar 26 2022 10:15:23

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

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

%N A054525 * A000012.

%C Row sums = phi(n), A000010: (1, 1, 2, 2, 4, 2, 6, 4, 6, 4, ...).

%F A054525 * A000012 as infinite lower triangular matrices.

%F Triangle read by rows, partial sums of A054525 (the Mobius transform) terms starting from the right.

%e First few rows of the triangle:

%e 1;

%e 0, 1;

%e 0, 1, 1;

%e 0, 0, 1, 1;

%e 0, 1, 1, 1, 1;

%e 0, -1, 0, 1, 1, 1;

%e 0, 1, 1, 1, 1, 1, 1;

%e 0, 0, 0, 0, 1, 1, 1, 1;

%e 0, 0, 0, 1, 1, 1, 1, 1, 1;

%e 0, -1, 0, 0, 0, 1, 1, 1, 1, 1;

%e ...

%Y Cf. A054525.

%K tabl,sign,more

%O 1,1

%A _Gary W. Adamson_, Oct 31 2007