A128133 Binomial transform of A128132.

1, 0, 2, -1, 3, 3, -2, 3, 8, 4, -3, 2, 14, 15, 5, -4, 0, 20, 35, 24, 6, -5, -3, 25, 65, 69, 35, 7, -6, -7, 28, 105, 154, 119, 48, 8, -7, -12, 28, 154, 294, 308, 188, 63, 9, -8, -18, 24, 210, 504, 672, 552, 279, 80, 10

Offset

1,3

Comments

Row sums = A005183: (1, 2, 5, 13, 33, 81, 193, ...).

A128132 * A007318 = A128134.

Links

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

Formula

A007318 * A128132 as infinite lower triangular matrices.

Example

First few rows of the triangle:
   1;
   0,  2;
  -1,  3,  3;
  -2,  3,  8,  4;
  -3,  2, 14, 15,  5;
  -4,  0, 20, 35, 24,  6;
  -5, -3, 25, 65, 69, 35,  7;
  ...

Crossrefs

Cf. A128132, A007318, A128134, A005183.

Sequence in context: A102746 A287618 A123143 * A032434 A002347 A006642

Adjacent sequences: A128130 A128131 A128132 * A128134 A128135 A128136

Keyword

tabl,sign

Author

Gary W. Adamson, Feb 15 2007

Status

approved