A055885 Euler transform applied twice to partition triangle A008284.

1, 1, 3, 1, 3, 6, 1, 6, 9, 14, 1, 6, 18, 23, 27, 1, 9, 27, 54, 57, 58, 1, 9, 39, 87, 140, 131, 111, 1, 12, 51, 150, 259, 353, 295, 223, 1, 12, 69, 210, 470, 702, 832, 637, 424, 1, 15, 84, 314, 749, 1379, 1803, 1917, 1350, 817, 1, 15, 105, 416, 1176, 2352, 3730, 4403, 4245, 2789, 1527

Offset

1,3

Links

Alois P. Heinz, Rows n = 1..150, flattened

N. J. A. Sloane, Transforms

Example

  1;
  1, 3;
  1, 3,  6;
  1, 6,  9, 14;
  1, 6, 18, 23, 27;
  ...

Crossrefs

Row sums give A007713.

Main diagonal gives A001970.

Cf. A055884, A055886.

Sequence in context: A131111 A336574 A128549 * A181425 A174505 A096713

Adjacent sequences: A055882 A055883 A055884 * A055886 A055887 A055888

Keyword

nonn,tabl

Author

Christian G. Bower, Jun 09 2000

Status

approved