A133705 A133704 + A051731 - A000012.

1, 1, -3, 1, -1, -3, 1, -3, -1, -1, 1, -1, -1, -1, -3, 1, -3, -3, -1, -1, 1, 1, -1, -1, -1, -1, -1, -3, 1, -3, -1, -1, -1, -1, -1, -1, 1, -3, -1, -1, -3, -1, -1, -1, -1, 1

Offset

1,3

Comments

Row sums = (1, -2, -3, -4, -5, ...).

Right border = A133696: (1, -3, -3, -1, -3, 1, -3, ...), where A133696(n) = 2*mu(n) - 1.

References

A133704 + A051731 - A000012 as infinite lower triangular matrices.

Links

Table of n, a(n) for n=1..46.

Example

First few rows of the triangle:
  1;
  1, -3;
  1, -1, -3;
  1, -3, -1, -1;
  1, -1, -1, -1, -3;
  1, -3, -3, -1, -1,  1;
  ...

Crossrefs

Cf. A133704, A051731, A000012, A008683.

Sequence in context: A104146 A326405 A193179 * A046111 A131779 A131775

Adjacent sequences: A133702 A133703 A133704 * A133706 A133707 A133708

Keyword

tabl,sign

Author

Gary W. Adamson, Sep 21 2007

Status

approved