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.

A330141 Triangle read by rows: binomial transform of triangle A330140.

Original entry on oeis.org

1, 1, 1, 1, 2, 2, 1, 3, 7, 4, 1, 4, 17, 20, 9, 1, 5, 36, 65, 60, 21, 1, 6, 72, 176, 249, 176, 51, 1, 7, 141, 434, 833, 889, 518, 127, 1, 8, 275, 1016, 2470, 3528, 3094, 1520, 323, 1, 9, 538, 2307, 6795, 12150, 14232, 10494, 4461, 835
Offset: 0

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Author

Gary W. Adamson, Dec 02 2019

Keywords

Comments

Row sums = the binomial transform of the Catalan numbers, A007317.
Right border = the Motzkin numbers, A001006.

Examples

			First few rows of the triangle are:
  1;
  1,   1;
  1,   2,   2;
  1,   3,   7,   4;
  1,   4,  17,  20,   9;
  1,   5,  36,  65,  60,  21;
  1,   6,  72, 176, 249, 176,  51;
  1,   7, 141, 434, 833, 889, 518, 127;
  ...
		

Crossrefs