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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A133341 A007318 * A134312.

Original entry on oeis.org

1, 2, 1, 3, 3, 2, 4, 6, 8, 4, 5, 10, 20, 20, 8, 6, 15, 40, 60, 48, 16, 7, 21, 70, 140, 168, 112, 32, 8, 28, 112, 280, 448, 448, 256, 64, 9, 36, 168, 504, 1008, 1344, 1152, 576, 128, 10, 45, 240, 840, 2016, 3360, 3840, 2880, 1280, 256
Offset: 0

Views

Author

Gary W. Adamson, Oct 19 2007

Keywords

Comments

Row sums = A047926: (1, 3, 8, 22, 63, 185, ...).

Examples

			First few rows of the triangle:
  1;
  2,   1;
  3,   3,   2;
  4,   6,   8,   4;
  5,  10,  20,  20,   8;
  6,  15,  40,  60,  48,  16;
  7,  21,  70, 140, 168, 112,  32;
  ...
		

Crossrefs

Formula

Binomial transform of A134312, as infinite lower triangular matrices.
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