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A128973 Triangle formed by reading A038622 mod 2 . 1
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 (list; table; graph; refs; listen; history; text; internal format)
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

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Last modified October 22 21:58 EDT 2020. Contains 337962 sequences. (Running on oeis4.)