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.

A134348 A007318^(-1) * A134347.

Original entry on oeis.org

1, 1, 3, -1, 2, 7, 1, -3, 3, 15, -1, 4, -6, 4, 31, 1, -5, 10, -10, 5, 63, -1, 6, -15, 20, -15, 6, 127, 1, -7, 21, -35, 35, -21, 7, 255, -1, 8, -28, 56, -70, 56, -28, 8, 511, 1, -9, 36, -84, 126, -126, 84, -36, 9, 1023
Offset: 0

Views

Author

Gary W. Adamson, Oct 21 2007

Keywords

Comments

Row sums = A046055: (1, 4, 8, 16, 32, 64, ...).

Examples

			First few rows of the triangle:
   1;
   1,  3;
  -1,  2,   7;
   1, -3,   3,  15;
  -1,  4,  -6,   4,  31;
   1, -5,  10, -10,   5,  63;
  -1,  6, -15,  20, -15,   6, 127;
   1, -7,  21, -35,  35, -21,   7, 255;
  ...
		

Crossrefs

Formula

Inverse binomial transform of triangle A134347.