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A127831 Inverse of number triangle mod(C(floor(k/2),n-k),2). 1
1, 0, 1, 0, 0, 1, 0, 0, -1, 1, 0, 0, 1, -1, 1, 0, 0, 0, 0, 0, 1, 0, 0, -1, 1, -1, 0, 1, 0, 0, 1, -1, 1, -1, -1, 1, 0, 0, 0, 0, 0, 1, 0, -1, 1, 0, 0, 0, 0, 0, 1, 0, -1, 0, 1, 0, 0, -1, 1, -1, 1, 1, -1, 0, 0, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Row sums are A085357. Inverse of A127829.

LINKS

Table of n, a(n) for n=0..65.

EXAMPLE

Triangle begins

1,

0, 1,

0, 0, 1,

0, 0, -1, 1,

0, 0, 1, -1, 1,

0, 0, 0, 0, 0, 1,

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

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

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

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

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

CROSSREFS

Sequence in context: A114482 A186518 A127829 * A164364 A198517 A105385

Adjacent sequences:  A127828 A127829 A127830 * A127832 A127833 A127834

KEYWORD

sign,tabl

AUTHOR

Paul Barry, Feb 01 2007

STATUS

approved

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Last modified January 26 01:48 EST 2020. Contains 331270 sequences. (Running on oeis4.)