A340812 - cp's OEIS frontend

A340812 Array read by antidiagonals: T(n,k) is the number of unlabeled oriented k-gonal 2-trees with n oriented polygons, n >= 0, k >= 2.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	2
10	1
11	1
12	1
13	2
14	3
15	1
16	1
17	1
18	3
19	7
20	6
21	1
22	1
23	1
24	3
25	11
26	18
27	11
28	1
29	1
30	1
31	4
32	17
33	49
34	68
35	23
36	1
37	1
38	1
39	4
40	25
41	96
42	252
43	251
44	47
45	1
46	1
47	1
48	5
49	33
50	177
51	687
52	1406
53	1020
54	106
55	1
56	1
57	1
58	5
59	43
60	285
61	1537
62	5087
63	8405
64	4258
65	235
66	1
67	1
68	1
69	6
70	55
71	442
72	3014
73	14310
74	40546
75	52348
76	18580
77	551

[1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 3, 1, 1, 1, 3, 7, 6, 1, 1, 1, 3, 11, 18, 11, 1, 1, 1, 4, 17, 49, 68, 23, 1, 1, 1, 4, 25, 96, 252, 251, 47, 1, 1, 1, 5, 33, 177, 687, 1406, 1020, 106, 1, 1, 1, 5, 43, 285, 1537, 5087, 8405, 4258, 235, 1, 1, 1, 6, 55, 442, 3014, 14310, 40546, 52348, 18580, 551]

cp's OEIS Frontend

A340812 Array read by antidiagonals: T(n,k) is the number of unlabeled oriented k-gonal 2-trees with n oriented polygons, n >= 0, k >= 2.

Table of values

List of values