A130304 Triangle, (1,1,0,0,1,1,0,0,...) in every column.

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

Offset

1,1

Links

Table of n, a(n) for n=1..91.

Example

First few rows of the triangle:
  1;
  1, 1;
  0, 1, 1;
  0, 0, 1, 1;
  1, 0, 0, 1, 1;
  1, 1, 0, 0, 1, 1;
  ...

Crossrefs

Cf. A004524 (row sums), A130305 (binomial transform).

Sequence in context: A145361 A189222 A229062 * A267533 A118274 A275737

Adjacent sequences: A130301 A130302 A130303 * A130305 A130306 A130307

Keyword

nonn,tabl,easy

Author

Gary W. Adamson, May 20 2007

Extensions

Missing 0 inserted at a(30) and more terms from Georg Fischer, Jul 28 2023

Status

approved