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.

Showing 1-2 of 2 results.

A129882 Sequence i_{t_n} arising in enumeration of arrays of directed blocks (see Quaintance reference for precise definition), where i_n = A129876, t_n = A129875.

Original entry on oeis.org

0, 2, 4, 4, 12, 18, 56, 72
Offset: 1

Views

Author

N. J. A. Sloane, May 26 2007

Keywords

References

  • Jocelyn Quaintance, Combinatoric Enumeration of Two-Dimensional Proper Arrays, Discrete Math., 307 (2007), 1844-1864.

Formula

See Quaintance reference for generating functions that produce A129872-A129886.

A129885 Sequence a_{t_n} arising in enumeration of arrays of directed blocks (see Quaintance reference for precise definition), where a_n = A129878, t_n = A129875.

Original entry on oeis.org

0, 1, 3, 3, 10, 13, 47, 59
Offset: 1

Views

Author

N. J. A. Sloane, May 26 2007

Keywords

References

  • Jocelyn Quaintance, Combinatoric Enumeration of Two-Dimensional Proper Arrays, Discrete Math., 307 (2007), 1844-1864.

Formula

See Quaintance reference for generating functions that produce A129872-A129886.
Showing 1-2 of 2 results.