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.

A331157 Number of iposets (posets with interfaces) with starting interfaces only, with n points.

Original entry on oeis.org

1, 2, 5, 16, 66, 350
Offset: 0

Views

Author

N. J. A. Sloane, Jan 16 2020, following a suggestion from Michael De Vlieger

Keywords

Links

  • Uli Fahrenberg, Christian Johansen, Georg Struth, Ratan Bahadur Thapa, Generating Posets Beyond N, arXiv:1910.06162 [cs.FL], 2019.

Crossrefs

The seven sequences in the table of Uli Fahrenberg et al., 2019, are A000112, A003430, A079566, A331156, A331157, A331158, A331159.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.