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.

A177954 Triangle read by rows, A070909 * Pascal's triangle.

Original entry on oeis.org

1, 2, 1, 2, 2, 1, 3, 5, 4, 1, 3, 6, 7, 4, 1, 4, 11, 17, 14, 6, 1, 4, 12, 22, 24, 16, 6, 1, 5, 19, 43, 59, 51, 27, 8, 1, 5, 20, 50, 80, 86, 62, 29, 8, 1, 6, 29, 86, 164, 212, 188, 113, 44, 10, 1
Offset: 0

Views

Author

Gary W. Adamson, May 15 2010

Keywords

Comments

Row sums = A086893: (1, 3, 5, 13, 21, 53, 85,...).

Examples

			First few rows of the triangle =
1;
2, 1;
2, 2, 1;
3, 5, 4, 1;
3, 6, 7, 4, 1;
4, 11, 17, 14, 6, 1;
4, 12, 22, 24, 16, 6, 1;
5, 19, 43, 59, 51, 27, 8, 1;
5, 20, 50, 80, 86, 62, 29, 8, 1;
6, 29, 86, 164, 212, 188, 113, 44, 10, 1;
6, 30, 95, 200, 296, 314, 239, 128, 46, 10, 1;
7, 41, 150, 365, 626, 776, 701, 458, 211, 65, 12, 1;
...
		

Crossrefs

Formula

Triangle read by rows, A070909 * A007318

Extensions

a(46) corrected by Georg Fischer, May 20 2022