A128973 Triangle formed by reading A038622 mod 2 .

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

Offset

0,1

Comments

Also triangle formed by reading triangles A089942, A124733, A126331, A126791, A126970 modulo 2 .

Links

Table of n, a(n) for n=0..104.

Formula

T(n,0)=A035263(n). Sum_{k, 0<=k<=n}T(n,k)*(-1)^k = (-1)^n .

Example

Triangle begins:
1;
0, 1;
1, 1, 1;
1, 1, 0, 1;
1, 0, 0, 1, 1;
0, 1, 1, 0, 0, 1;
1, 0, 0, 1, 1, 1, 1;
0, 1, 1, 0, 1, 1, 0, 1;
1, 0, 0, 0, 0, 0, 0, 1, 1;

Crossrefs

Sequence in context: A162519 A181359 A072418 * A176412 A013596 A182394

Adjacent sequences: A128970 A128971 A128972 * A128974 A128975 A128976

Keyword

nonn,tabl

Author

Philippe Deléham, Apr 28 2007

Status

approved