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A181101
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Triangle T(n,k) read by rows. T(1,1)=-1, n>1: If n/k=A020639(n) then 1 else 0.
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1
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-1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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COMMENTS
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Let A=T(n,k)*T(n,k), B=A*A, C=B*B, D=C*C, and so on. Then the first column in the last matrix (D) converges to the Liouville function.
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LINKS
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Table of n, a(n) for n=1..105.
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EXAMPLE
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Triangle starts:
-1,
1,0,
1,0,0,
0,1,0,0,
1,0,0,0,0,
0,0,1,0,0,0,
1,0,0,0,0,0,0,
0,0,0,1,0,0,0,0,
0,0,1,0,0,0,0,0,0,
0,0,0,0,1,0,0,0,0,0,
1,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,1,0,0,0,0,0,0,
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CROSSREFS
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Cf. A020639, A008836.
Sequence in context: A058840 A154269 A036987 * A214509 A053866 A143259
Adjacent sequences: A181098 A181099 A181100 * A181102 A181103 A181104
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KEYWORD
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sign,tabl
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AUTHOR
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Mats Granvik, Oct 03 2010
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STATUS
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approved
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