A126705 A097806 * A054523 as infinite lower triangular matrices.

1, 2, 1, 3, 1, 1, 4, 1, 1, 1, 6, 1, 0, 1, 1, 6, 2, 1, 0, 1, 1, 8, 2, 1, 0, 0, 1, 1, 10, 2, 0, 1, 0, 0, 1, 1, 10, 2, 2, 1, 0, 0, 0, 1, 1, 10, 4, 2, 0, 1, 0, 0, 0, 1, 1

Offset

1,2

Comments

Row sums = (1, 3, 5, 7, 9, ...). A129479 = A054523 * A097806. A097806 = the pairwise operator.

Links

Table of n, a(n) for n=1..55.

Example

First few rows of the triangle:
  1;
  2, 1;
  3, 1, 1;
  4, 1, 1, 1;
  6, 1, 0, 1, 1;
  6, 2, 1, 0, 1, 1;
  8, 2, 1, 0, 0, 1, 1;
  ...

Crossrefs

Cf. A097806 * A054523, A129479.

Sequence in context: A144220 A156826 A130296 * A367849 A263646 A113924

Adjacent sequences: A126702 A126703 A126704 * A126706 A126707 A126708

Keyword

nonn,tabl

Author

Gary W. Adamson, Apr 17 2007

Status

approved