A134352 A130123 * A128174.

1, 0, 2, 4, 0, 4, 0, 8, 0, 8, 16, 0, 16, 0, 16, 0, 32, 0, 32, 0, 32, 64, 0, 64, 0, 64, 0, 64, 0, 128, 0, 128, 0, 128, 0, 128, 256, 0, 256, 0, 256, 0, 256, 0, 256, 0, 512, 0, 512, 0, 512, 0, 512, 0, 512

Offset

0,3

Comments

Row sums = A134353.

Links

Table of n, a(n) for n=0..54.

Formula

A130123 * A128174 as infinite lower triangular matrices.

Triangle read by rows: even n-th row = n+1 terms of (2^n, 0, 2^n, ...); odd n-th row = n+1 terms of (0, 2^n, 0, 2^n, ...).

Example

First few rows of the triangle:
   1;
   0,  2;
   4,  0,  4;
   0,  8,  0,  8;
  16,  0, 16,  0, 16;
   0, 32,  0, 32,  0, 32;
  ...

Crossrefs

Cf. A130123, A128174, A134353.

Sequence in context: A258773 A054003 A338475 * A152648 A327898 A140875

Adjacent sequences: A134349 A134350 A134351 * A134353 A134354 A134355

Keyword

nonn,tabl

Author

Gary W. Adamson, Oct 21 2007

Status

approved