A261238 - cp's OEIS frontend

A261238 Number of transitive reflexive early confluent binary relations R on 2n labeled elements where max_{x}(|{y:xRy}|)=n.

n	a(n)
0	1
1	1
2	61
3	12075
4	4798983
5	3151808478
6	3085918099231
7	4210378306984993
8	7631859877504516225
9	17735784941946000072572
10	51404873131596488549863350
11	181773929944698613445522139632
12	770224297920086034338727292711511
13	3852558194920465350481058381000064850

[1, 1, 61, 12075, 4798983, 3151808478, 3085918099231, 4210378306984993, 7631859877504516225, 17735784941946000072572, 51404873131596488549863350, 181773929944698613445522139632, 770224297920086034338727292711511, 3852558194920465350481058381000064850]

cp's OEIS Frontend

A261238 Number of transitive reflexive early confluent binary relations R on 2n labeled elements where max_{x}(|{y:xRy}|)=n.

Table of values

List of values