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A181101 Triangle T(n,k) read by rows. T(1,1)=-1, n>1: If n/k=A020639(n) then 1 else 0. 2
-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)
OFFSET

1,1

COMMENTS

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.

LINKS

Table of n, a(n) for n=1..105.

EXAMPLE

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,

CROSSREFS

Cf. A020639, A008836.

Sequence in context: A353687 A354918 A354108 * A321512 A297054 A266459

Adjacent sequences:  A181098 A181099 A181100 * A181102 A181103 A181104

KEYWORD

sign,tabl

AUTHOR

Mats Granvik, Oct 03 2010

STATUS

approved

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Last modified September 24 14:01 EDT 2022. Contains 356932 sequences. (Running on oeis4.)