A129561 A054523 * A115369.

1, 0, 1, 2, 0, 1, 1, 0, 0, 1, 4, 0, 0, 0, 1, 0, 2, 0, 0, 0, 1, 6, 0, 0, 0, 0, 0, 1, 2, 1, 0, 0, 0, 0, 0, 1, 6, 0, 2, 0, 0, 0, 0, 0, 1, 0, 4, 0, 0, 0, 0, 0, 0, 0, 1

Offset

1,4

Comments

Row sums = A026741: (1, 1, 3, 3, 2, 5, 3, 7, 4, ...).

Links

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

Formula

A054523 * A115369 as infinite lower triangular matrices.

Example

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

Crossrefs

Cf. A054523, A115369, A026741.

Sequence in context: A077266 A366794 A214302 * A259895 A276479 A067742

Adjacent sequences: A129558 A129559 A129560 * A129562 A129563 A129564

Keyword

nonn,tabl

Author

Gary W. Adamson, Apr 20 2007

Status

approved