A369799 - cp's OEIS frontend

A369799 Number of binary relations R on [n] such that q(R) is a quasi-order and s(R) is a strict partial order (where q(R) and s(R) are defined below).

n	a(n)
0	1
1	2
2	13
3	237
4	11590
5	1431913
6	424559959
7	292150780260
8	456213083587511
9	1589279411184268465
10	12188163803127032036308
11	203538148644721100472292979
12	7336995548182992341725851094195
13	566597426371900580541745092349604750
14	93154354372753215966288131247384428212545
15	32423220989898980232206367503220063835343283713

[1, 2, 13, 237, 11590, 1431913, 424559959, 292150780260, 456213083587511, 1589279411184268465, 12188163803127032036308, 203538148644721100472292979, 7336995548182992341725851094195, 566597426371900580541745092349604750, 93154354372753215966288131247384428212545, 32423220989898980232206367503220063835343283713]

cp's OEIS Frontend

A369799 Number of binary relations R on [n] such that q(R) is a quasi-order and s(R) is a strict partial order (where q(R) and s(R) are defined below).

Table of values

List of values