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.

Showing 1-1 of 1 results.

A141210 Triangle read by rows, A140207^2.

Original entry on oeis.org

1, 2, 1, 4, 3, 4, 7, 6, 10, 9, 12, 11, 20, 24, 25, 19, 18, 34, 45, 60, 49, 30, 29, 56, 78, 115, 126, 121, 45, 44, 86, 123, 190, 231, 286, 225, 67, 66, 130, 189, 300, 385, 528, 555, 484, 97, 96, 190, 279, 450, 595, 858, 1005, 1144, 900
Offset: 0

Views

Author

Gary W. Adamson & Roger L. Bagula, Jun 13 2008

Keywords

Comments

Left border of the triangle = A000070; right border = A001255.

Examples

			First few rows of the triangle are:
1;
2, 1;
4, 3, 4;
7, 6, 10, 9;
12, 11, 20, 24, 25;
19, 18, 34, 45, 60, 49;
30, 29, 56, 78, 115, 126, 121;
...

Crossrefs

Cf. A001255, A141211 (row sums), A140207, A000070.

Formula

A140207^2 as an infinite lower triangular matrix.
Showing 1-1 of 1 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.