A342447 - cp's OEIS frontend

A342447 T(n,e) is the number of unlabeled posets of n>=0 points with e>=0 arcs in the Hasse diagram, irregular triangle read by rows.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	3
7	1
8	1
9	4
10	8
11	2
12	1
13	1
14	4
15	11
16	29
17	12
18	5
19	1
20	1
21	4
22	12
23	43
24	105
25	92
26	45
27	12
28	3
29	1
30	1
31	4
32	12
33	46
34	156
35	460
36	582
37	487
38	204
39	71
40	14
41	7
42	1
43	1
44	4
45	12
46	47
47	170
48	670
49	2097
50	3822
51	4514
52	3271
53	1579
54	561
55	186
56	44
57	16
58	4
59	1
60	1
61	4
62	12
63	47
64	173
65	731
66	2954
67	10513
68	24584
69	40182

[1, 1, 1, 1, 1, 1, 3, 1, 1, 4, 8, 2, 1, 1, 4, 11, 29, 12, 5, 1, 1, 4, 12, 43, 105, 92, 45, 12, 3, 1, 1, 4, 12, 46, 156, 460, 582, 487, 204, 71, 14, 7, 1, 1, 4, 12, 47, 170, 670, 2097, 3822, 4514, 3271, 1579, 561, 186, 44, 16, 4, 1, 1, 4, 12, 47, 173, 731, 2954, 10513, 24584, 40182]

cp's OEIS Frontend

A342447 T(n,e) is the number of unlabeled posets of n>=0 points with e>=0 arcs in the Hasse diagram, irregular triangle read by rows.

Table of values

List of values