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.

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A128142 A128132 * A122432 (unsigned).

Original entry on oeis.org

1, 5, 2, 15, 8, 3, 34, 21, 11, 4, 65, 44, 27, 14, 5, 111, 80, 54, 33, 17, 6, 175, 132, 95, 64, 39, 20, 7, 260, 203, 153, 110, 74, 45, 23, 8, 369, 296, 231, 174, 125, 84, 51, 26, 9, 505, 414, 332, 259, 195, 140, 94, 57, 29, 10
Offset: 1

Views

Author

Gary W. Adamson, Feb 16 2007

Keywords

Comments

Row sums = A006325 starting (1, 7, 26, 70, 155, ...).
Left border = A006003: (1, 5, 15, 34, 65, 111, ...).

Examples

			First few rows of the triangle:
    1;
    5,   2;
   15,   8,  3;
   34,  21, 11,  4;
   65,  44, 27, 14,  5;
  111,  80, 54, 33, 17,  6;
  175, 132, 95, 64, 39, 20,  7;
  ...
		

Crossrefs

Formula

A128132 * A122432 (unsigned); as infinite lower triangular matrices.
Showing 1-1 of 1 results.