cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A130160 A051731 * A130159 as a diagonalized matrix.

Original entry on oeis.org

1, 1, 1, 1, 0, 3, 1, 1, 0, 5, 1, 0, 0, 0, 7, 1, 1, 3, 0, 0, 6, 1, 0, 0, 0, 0, 0, 12, 1, 1, 0, 5, 0, 0, 0, 7, 1, 0, 3, 0, 0, 0, 0, 0, 12, 1, 1, 0, 0, 7, 0, 0, 0, 0, 10
Offset: 1

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Author

Gary W. Adamson, May 13 2007

Keywords

Comments

Right border = A130159, the Moebius transform of the Odious numbers, A000069: (1, 2, 4, 7, 8, 11, ...) = (1, 1, 3, 5, 7, 6, 12, ...). Row sums = A000069.

Examples

			First few rows of the triangle:
  1;
  1,  1;
  1,  0,  3;
  1,  1,  0,  5;
  1,  0,  0,  0,  7;
  1,  1,  3,  0,  0,  6;
  1,  0,  0,  0,  0,  0, 12;
  ...
		

Crossrefs

Formula

Inverse Moebius transform (A051731) of an infinite lower triangular matrix with A130159 in the main diagonal and rest zeros.