A128259 -id:A128259 - cp's OEIS frontend

A128260 A128229 * A051731.

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

Offset: 1

Gary W. Adamson, Feb 21 2007

Row sums = A128261: (1, 3, 6, 9, 14, 14, 26, 18, 35, 31, ...).

			First few rows of the triangle:
  1;
  2, 1;
  3, 2, 1;
  4, 1, 3, 1;
  5, 4, 0, 4, 1;
  6, 1, 1, 0, 5, 1;
  7, 6, 6, 0, 0, 6, 1;
  8, 1, 0, 1, 0, 0, 7, 1;
  ...

Cf. A128229, A051731, A128261, A128259.

A128258 Moebius transform of A128229.

Original entry on oeis.org

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

Offset: 1

Gary W. Adamson, Feb 21 2007

Row sums = phi(n), A000010: (1, 1, 2, 2, 4, 2, 6,...). A128259 = inverse Moebius transform of A128229.

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

Cf. A128259, A128229, A054525, A000010.

A054525 * A128229

cp's OEIS Frontend

A128260 A128229 * A051731.

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