A134066 Triangle = A134060 + A124928 - A007318.

1, 2, 4, 2, 8, 4, 2, 12, 12, 4, 2, 16, 24, 16, 4, 2, 20, 40, 40, 20, 4, 2, 24, 60, 80, 60, 24, 4, 2, 28, 84, 140, 140, 84, 28, 4, 2, 32, 112, 224, 280, 224, 112, 32, 42, 36, 144, 336, 504, 504, 336, 144, 36, 4

Offset

0,2

Comments

Row sums = A134067: (1, 6, 14, 30, 62, 126, ...).

Links

Table of n, a(n) for n=0..53.

Formula

Triangle as infinite lower triangular matrix, (A134060 + A124928 - A007318).

Example

First few rows of the triangle:
  1;
  2,  4;
  2,  8,  4;
  2, 12, 12,  4;
  2, 16, 24, 16,  4;
  2, 20, 40, 40, 20,  4;
  ...

Crossrefs

Cf. A134060, A124928, A134067.

Sequence in context: A093895 A030057 A286596 * A090988 A267584 A337194

Adjacent sequences: A134063 A134064 A134065 * A134067 A134068 A134069

Keyword

nonn,tabl

Author

Gary W. Adamson, Oct 06 2007

Status

approved