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 A159937 Triangle read by rows, A054525 * A127478, as infinite lower triangular matrices. 2

%I

%S 1,1,1,2,0,2,2,1,0,2,4,0,0,0,4,2,2,2,0,0,2,6,0,0,0,0,0,6,4,2,0,2,0,0,

%T 0,4,6,0,4,0,0,0,0,0,6,4,4,0,0,4,0,0,0,0,4,10,0,0,0,0,0,0,0,0,0,10,4,

%U 2,4,4,0,2,0,0,0,0,0,4

%N Triangle read by rows, A054525 * A127478, as infinite lower triangular matrices.

%C Row sums = A029935: (1, 2, 4, 5, 8, 8,...). Right and left borders = A000010, phi(n).

%F A054525 * A127478 = Mobius transform of triangle A127478.

%e First few rows of the triangle =

%e 1;

%e 1, 1;

%e 2, 0, 2;

%e 2, 1, 0, 2;

%e 4, 0, 0, 0, 4;

%e 2, 2, 2, 0, 0, 2;

%e 6, 0, 0, 0, 0, 0, 6;

%e 4, 2, 0, 2, 0, 0, 0, 4;

%e 6, 0, 4, 0, 0, 0, 0, 0, 6;

%e 4, 4, 0, 0, 4, 0, 0, 0, 0, 4;

%e 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10;

%e 4, 2, 4, 4, 0, 2, 0, 0, 0, 0, 0, 4;

%e 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12;

%e 6, 6, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 6;

%e 8, 0, 8, 0, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8;

%e ...

%Y Cf. A127478, A029935

%K nonn,tabl

%O 1,4

%A _Gary W. Adamson_, Apr 26 2009

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