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A106344 Triangle read by rows: T(n,k) = binomial(k,n-k) mod 2. 15
1, 0, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

A skew version of Sierpinski’s triangle A047999. - Johannes W. Meijer, Jun 05 2011

Row sums are A002487(n+1). Diagonal sums are A106345. Inverse is A106346.

Triangle formed by reading T triangle mod 2 with T := A026729, A062110, A084938, A099093, A106344, A109466, A110517, A112883, A130167. - Philippe Deléham, Dec 18 2008

LINKS

G. C. Greubel, Table of n, a(n) for the first 50 rows, flattened

EXAMPLE

Triangle begins

1;

0,1;

0,1,1;

0,0,0,1;

0,0,1,1,1;

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

MATHEMATICA

Table[Mod[Binomial[k, n - k], 2], {n, 0, 10}, {k, 0, n}] // Flatten (* G. C. Greubel, Apr 18 2017 *)

CROSSREFS

Sequence in context: A133566 A077051 A115955 * A106346 A167371 A127241

Adjacent sequences:  A106341 A106342 A106343 * A106345 A106346 A106347

KEYWORD

easy,nonn,tabl

AUTHOR

Paul Barry, Apr 29 2005

STATUS

approved

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Last modified October 19 13:38 EDT 2018. Contains 316361 sequences. (Running on oeis4.)