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Search: id:A134540
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%I A134540
%S A134540 1,0,1,0,1,1,0,0,1,1,0,1,1,1,1,0,1,0,1,1,1,0,1,1,1,1,1,1,0,0,0,0,1,1,1,
%T A134540 1,0,0,0,1,1,1,1,1,1,0,1,0,0,0,1,1,1,1,1
%V A134540 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,
               1,1,0,0,0,1,1,1,
%W A134540 1,1,1,0,-1,0,0,0,1,1,1,1,1
%N A134540 A054525 * A000012.
%C A134540 Row sums = phi(n), A000010: (1, 1, 2, 2, 4, 2, 6, 4, 6, 4,...).
%F A134540 A054525 * A000012 as infinite lower triangular matrices. Triangle read 
               by rows, partial sums of A054525 (the Mobius transform) terms starting 
               from the right.
%e A134540 First few rows of the triangle are:
%e A134540 1;
%e A134540 0, 1;
%e A134540 0, 1, 1;
%e A134540 0, 0, 1, 1;
%e A134540 0, 1, 1, 1, 1;
%e A134540 0, -1, 0, 1, 1, 1;
%e A134540 0, 1, 1, 1, 1, 1, 1;
%e A134540 0, 0, 0, 0, 1, 1, 1, 1;
%e A134540 0, 0, 0, 1, 1, 1, 1, 1, 1;
%e A134540 0, -1, 0, 0, 0, 1, 1, 1, 1, 1;
%e A134540 ...
%Y A134540 Cf. A054525.
%Y A134540 Sequence in context: A101688 A155031 A155029 this_sequence A128430 A113704 
               A131670
%Y A134540 Adjacent sequences: A134537 A134538 A134539 this_sequence A134541 A134542 
               A134543
%K A134540 tabl,sign
%O A134540 1,1
%A A134540 Gary W. Adamson (qntmpkt(AT)yahoo.com), Oct 31 2007

    
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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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