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.

A130028 A129686 * A054523.

Original entry on oeis.org

1, 1, 1, 3, 0, 1, 3, 2, 0, 1, 6, 0, 1, 0, 1, 4, 3, 1, 1, 0, 1, 10, 0, 0, 0, 1, 0, 1, 6, 4, 1, 1, 0, 1, 0, 1, 12, 0, 2, 0, 0, 0, 1, 0, 1, 8, 6, 0, 1, 1, 0, 0, 1, 0, 1
Offset: 1

Views

Author

Gary W. Adamson, May 02 2007

Keywords

Comments

Row sums = A004277, 1 followed by even terms: (1, 2, 4, 6, 8, 10, ...).

Examples

			First few rows of the triangle:
   1;
   1, 1;
   3, 0, 1;
   3, 2, 0, 1;
   6, 0, 1, 0, 1;
   4, 3, 1, 1, 0, 1;
  10, 0, 0, 0, 1, 0, 1;
   6, 4, 1, 1, 0, 1, 0, 1;
  ...
		

Crossrefs

Formula

A129686 * A054523 as infinite lower triangular matrices, where A129686 = the alternate term operator.