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.

A134510 A112552 * A128174.

Original entry on oeis.org

1, 1, 1, 3, 1, 1, 4, 4, 1, 1, 8, 5, 5, 1, 1, 12, 12, 6, 6, 1, 1, 21, 17, 17, 7, 7, 1, 1, 33, 33, 23, 23, 8, 8, 1, 1, 55, 50, 50, 30, 30, 9, 9, 1, 1, 88, 88, 73, 73, 38, 38, 10, 10, 1, 1
Offset: 1

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Author

Gary W. Adamson, Oct 28 2007

Keywords

Comments

Row sums = the nonzero terms of A001629: (1, 2, 5, 10, 20, 38, 71, ...) such that A001629(n+1) = row sums of triangle A134510.

Examples

			First few rows of the triangle:
   1;
   1,  1;
   3,  1,  1;
   4,  4,  1,  1;
   8,  5,  5,  1,  1;
  12, 12,  6,  6,  1,  1;
  21, 17, 17,  7,  7,  1,  1;
  33, 33, 23, 23,  8,  8,  1,  1;
  55, 50, 50, 30, 30,  9,  9,  1,  1;
  ...
		

Crossrefs

Formula

A112552 * A128174 as infinite lower triangular matrices.