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A128190 Inverse of A128189. 0
1, 1, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, -1, 0, 1, 0, 0, 1, -1, 0, 1, 0, 0, 0, 0, -1, 0, 1, 0, 0, -1, 1, 0, -1, 0, 1, 0, 0, 1, 0, 0, 0, -1, 0, 1, 0, 0, 0, -1, 1, 0, 0, -1, 0, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Row sums = 1, 2, 1, 1, 0, 1, 0, 0, 1, 0,... (the first 10 terms of A104162).

LINKS

Table of n, a(n) for n=0..54.

FORMULA

Inverse of A128189 as an infinite lower triangular matrix.

EXAMPLE

First few rows of the triangle are:

1;

1, 1;

0, 0, 1;

0, 0, 0, 1;

0, 0, -1, 0, 1;

0, 0, 1, -1, 0, 1;

...

CROSSREFS

Cf. A104162, A128189.

Sequence in context: A204443 A105349 A096606 * A128189 A303340 A115512

Adjacent sequences:  A128187 A128188 A128189 * A128191 A128192 A128193

KEYWORD

tabl,sign

AUTHOR

Gary W. Adamson, Feb 17 2007

STATUS

approved

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Last modified June 19 15:42 EDT 2021. Contains 345142 sequences. (Running on oeis4.)