A130314 A051731 * A126705.

1, 3, 1, 4, 1, 1, 7, 2, 1, 1, 7, 1, 0, 1, 1, 12, 4, 2, 0, 1, 1, 9, 2, 1, 0, 0, 1, 1, 17, 4, 1, 2, 0, 0, 1, 1, 14, 3, 3, 1, 0, 0, 0, 1, 1, 19, 6, 2, 1, 2, 0, 0, 0, 1, 1

Offset

1,2

Comments

Row sums = A129235: (1, 4, 6, 11, 10, 20, ...).

Links

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

Formula

Inverse Moebius transform of A126075.

Example

First few rows of the triangle:
   1;
   3, 1;
   4, 1, 1;
   7, 2, 1, 1;
   7, 1, 0, 1, 1;
  12, 4, 2, 0, 1, 1;
  ...

Crossrefs

Cf. A051731, A126705, A129235.

Sequence in context: A109411 A302240 A130307 * A334466 A127057 A143355

Adjacent sequences: A130311 A130312 A130313 * A130315 A130316 A130317

Keyword

nonn,tabl

Author

Gary W. Adamson, May 21 2007

Status

approved