A127373 Triangle, row sums = A023896, left column = A053570.

1, 1, 0, 2, 1, 0, 3, 0, 1, 0, 6, 2, 1, 1, 0, 5, 0, 0, 0, 1, 0, 12, 4, 2, 1, 1, 1, 0, 13, 0, 1, 0, 1, 0, 1, 0, 18, 4, 0, 2, 1, 0, 1, 1, 0, 15, 0, 3, 0, 0, 0, 1, 0, 1, 0

Offset

1,4

Comments

Row sums = A023896: (1, 1, 3, 4, 10, 6, ...); left column = A053570: (1, 2, 3, 6, 5, 12, ...).

Links

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

Formula

A054521 * A054523 as infinite lower triangular matrices.

Example

First few rows of the triangle:
   1;
   1, 0;
   2, 1, 0;
   3, 0, 1, 0;
   6, 2, 1, 1, 0;
   5, 0, 0, 0, 1, 0
  12, 4, 2, 1, 1, 1, 0;
  ...

Crossrefs

Cf. A054521, A054523, A053570, A023896.

Sequence in context: A340867 A178616 A165252 * A200123 A187616 A217262

Adjacent sequences: A127370 A127371 A127372 * A127374 A127375 A127376

Keyword

nonn,tabl

Author

Gary W. Adamson, Jan 12 2007

Status

approved