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.

A160183 Triangle, read by rows, obtained by dropping right diagonal from A160182.

Original entry on oeis.org

1, 2, 1, 3, 1, 1, 5, 2, 1, 1, 6, 2, 1, 1, 1, 10, 4, 2, 1, 1, 1, 11, 4, 2, 1, 1, 1, 1, 16, 6, 3, 2, 1, 1, 1, 1, 19, 7, 4, 2, 1, 1, 1, 1, 1, 26, 10, 5, 3, 2, 1, 1, 1, 1, 1
Offset: 1

Views

Author

Gary W. Adamson, May 03 2009

Keywords

Comments

A054525 * A160183 = triangle A160182. Mobius transform A054525 of the triangle shifts to the left adding I, I = Identity matrix.
Left border = A003238 starting (1, 2, 3, 5, 6, 10, 11, 16, 19,...).

Examples

			First few rows of the triangle =
1;
2, 1;
3, 1, 1;
5, 2, 1, 1;
6, 2, 1, 1, 1;
10, 4, 2, 1, 1, 1;
11, 4, 2, 1, 1, 1, 1;
16, 6, 3, 2, 1, 1, 1, 1;
19, 7, 4, 2, 1, 1, 1, 1, 1;
26, 10, 5, 3, 2, 1, 1, 1, 1, 1;
...
		

Crossrefs

Formula

A054525 * triangle A160182, also obtained by shifting triangle A160182 to the right, deleting the (1,1,1,...) right border.