OFFSET
1,4
LINKS
Salah Uddin Mohammad, Md. Shah Noor, and Md. Rashed Talukder, An Exact Enumeration of the Unlabeled Disconnected Posets, J. Int. Seq., Vol. 25 (2022), Article 22.5.4.
EXAMPLE
Triangle begins:
1;
1, 1;
3, 1, 1;
9, 4, 1, 1;
31, 12, 4, 1, 1;
115, 46, 13, 4, 1, 1;
474, 173, 49, 13, 4, 1, 1;
2097, 727, 188, 50, 13, 4, 1, 1;
9967, 3195, 795, 191, 50, 13, 4, 1, 1;
50315, 15017, 3502, 810, 192, 50, 13, 4, 1, 1;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Salah Uddin Mohammad, Jan 16 2022
STATUS
approved