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 1-5 of 5 results.

A129886 Sequence a_{h_n} arising in enumeration of arrays of directed blocks (see Quaintance reference for precise definition), where a_n = A129878, h_n = A129874.

Original entry on oeis.org

1, 0, 1, 1, 6, 4, 25, 20
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.

A129877 Sequence i_{a_n} arising in enumeration of arrays of directed blocks (see Quaintance reference for precise definition), where i_n is A129876, a_n is A129878.

Original entry on oeis.org

2, 0, 6, 12, 58, 220, 958, 4184
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.

A129879 Sequence a_{a_n} arising in enumeration of arrays of directed blocks (see Quaintance reference for precise definition), where a_n is A129878.

Original entry on oeis.org

1, 0, 3, 9, 42, 182, 821, 3754
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.

A129884 Sequence a_{s_n} arising in enumeration of arrays of directed blocks (see Quaintance reference for precise definition), where a_n = A129878, s_n = A129873.

Original entry on oeis.org

1, 1, 4, 4, 16, 17, 72, 79
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 1-5 of 5 results.