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.

A202698 The first of a set of three triangles constructed by the same rule as A202692-A202694, but where the top entries in the three triangles are 0,1,0 respectively.

Original entry on oeis.org

0, 0, 0, 3, 3, 3, 0, 3, 6, 9, 147, 147, 144, 138, 129
Offset: 1

Views

Author

N. J. A. Sloane, Dec 23 2011

Keywords

Examples

			The triangle begins:
0
0 0
3 3 3
0 3 6 9
147 147 144 138 129
...
The three triangles together:
0                   1                        0
0 0                 0 1                      1 1
3 3 3               3 3 2                    2 1 0
0 3 6 9             9 12 15 17               17 19 20 20
147 147 144 138 129 129 120 108 93 76        76 59 40 20 0
		

Crossrefs

The three triangles are A202698, A202699, A202700.