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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A133737 A000012 * A130162.

Original entry on oeis.org

1, 2, 1, 3, 1, 2, 4, 2, 2, 3, 5, 2, 2, 3, 6, 6, 3, 4, 3, 6, 7, 7, 3, 4, 3, 6, 7, 14, 8, 4, 4, 6, 6, 7, 14, 17, 9, 4, 6, 6, 6, 7, 14, 17, 27, 10, 5, 6, 6, 12, 7, 14, 17, 27, 34
Offset: 1

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Author

Gary W. Adamson, Sep 22 2007

Keywords

Comments

Row sums = A026905, partial sums of A000041, the partition numbers with offset 1, = (1, 3, 6, 11, 18, 29, 44, 66, ...).

Examples

			First few rows of the triangle:
  1;
  2, 1;
  3, 1, 2;
  4, 2, 2, 3;
  5, 2, 2, 3, 6;
  6, 3, 4, 3, 6, 7;
  7, 3, 4, 3, 6, 7, 14;
  ...

Crossrefs

Cf. A130162, A026905, A000041.

Formula

A000012 * A130162 as infinite lower triangular matrices.
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