A128262 Inverse Moebius transform of A127899 (unsigned).

1, 3, 2, 1, 3, 3, 3, 2, 4, 4, 1, 0, 0, 5, 5, 3, 5, 3, 0, 6, 6, 1, 0, 0, 0, 0, 7, 7, 3, 2, 4, 4, 0, 0, 8, 8, 1, 3, 3, 0, 0, 0, 0, 9, 9, 3, 2, 0, 5, 5, 0, 0, 0, 10, 10

Offset

1,2

Comments

Row sums = A002659: (1, 5, 7, 13, 11, 23, 15, 29, ...).

Links

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

Formula

A051731 * unsigned A127899 as infinite lower triangular matrices.

Example

First few rows of the triangle:
  1;
  3, 2;
  1, 3, 3;
  3, 2, 4, 4;
  1, 0, 0, 5, 5;
  3, 5, 3, 0, 6, 6;
  1, 0, 0, 0, 0, 7, 7;
  ...

Crossrefs

Cf. A051731, A127899, A002659.

Sequence in context: A244758 A374215 A230493 * A140414 A129514 A175506

Adjacent sequences: A128259 A128260 A128261 * A128263 A128264 A128265

Keyword

nonn,tabl

Author

Gary W. Adamson, Feb 21 2007

Status

approved