A135086 Triangle, antidiagonals of an array formed by A000012 * A130321(transform).

1, 1, 2, 1, 3, 4, 1, 3, 6, 8, 1, 3, 7, 12, 16, 1, 3, 7, 14, 24, 32, 1, 3, 7, 15, 28, 48, 64, 1, 3, 7, 15, 30, 56, 96, 128, 1, 3, 7, 15, 31, 60, 112, 192, 256, 1, 3, 7, 15, 31, 62, 120, 224, 384, 512

Offset

1,3

Comments

Row sums = A011377: (1, 3, 8, 18, 39, 81, 166, ...).

Links

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

Formula

Triangle, antidiagonals of the array formed by A000012 * A130321.

Example

First few rows of the array:
  1, 2, 4,  8, 16, 32, ...
  1, 3, 6, 12, 24, 48, ...
  1, 3, 7, 14, 28, 56, ...
  1, 3, 7, 15, 30, 60, ...
  1, 3, 7, 15, 31, 62, ...
  ...
First few rows of the triangle:
  1;
  1,  2;
  1,  3,  4;
  1,  3,  6,  8;
  1,  3,  7, 12, 16;
  1,  3,  7, 14, 24, 32;
  1,  3,  7, 15, 28, 48, 64;
  ...

Crossrefs

Cf. A130321, A000012, A011377.

Sequence in context: A338367 A186975 A027422 * A210561 A210549 A187002

Adjacent sequences: A135083 A135084 A135085 * A135087 A135088 A135089

Keyword

nonn,tabl

Author

Gary W. Adamson, Nov 18 2007

Status

approved