A331156 Number of (weakly) connected gluing-parallel or GP-posets with n points.

1, 1, 1, 3, 10, 44, 233

Offset

0,4

Links

Table of n, a(n) for n=0..6.

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.

Sequence in context: A335635 A096804 A113059 * A240172 A167995 A000608

Adjacent sequences: A331153 A331154 A331155 * A331157 A331158 A331159

Keyword

nonn,more

Author

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

Extensions

Typo in a(6) corrected by Uli Fahrenberg, Feb 03 2024

Status

approved