A127831 Inverse of number triangle mod(C(floor(k/2),n-k),2).

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

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: A365799 A186518 A127829 * A164364 A198517 A105385

Adjacent sequences: A127828 A127829 A127830 * A127832 A127833 A127834

Keyword

sign,tabl

Author

Paul Barry, Feb 01 2007

Status

approved