A340814 - cp's OEIS frontend

A340814 Array read by antidiagonals: T(n,k) is the number of unlabeled oriented edge-rooted 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	2
6	1
7	1
8	3
9	4
10	1
11	1
12	4
13	10
14	9
15	1
16	1
17	5
18	19
19	39
20	20
21	1
22	1
23	6
24	31
25	107
26	160
27	48
28	1
29	1
30	7
31	46
32	229
33	647
34	702
35	115
36	1
37	1
38	8
39	64
40	421
41	1832
42	4167
43	3177
44	286
45	1
46	1
47	9
48	85
49	699
50	4191
51	15583
52	27847
53	14830
54	719
55	1
56	1
57	10
58	109
59	1079
60	8325
61	44322
62	137791
63	191747
64	70678
65	1842

[1, 1, 1, 1, 1, 2, 1, 1, 3, 4, 1, 1, 4, 10, 9, 1, 1, 5, 19, 39, 20, 1, 1, 6, 31, 107, 160, 48, 1, 1, 7, 46, 229, 647, 702, 115, 1, 1, 8, 64, 421, 1832, 4167, 3177, 286, 1, 1, 9, 85, 699, 4191, 15583, 27847, 14830, 719, 1, 1, 10, 109, 1079, 8325, 44322, 137791, 191747, 70678, 1842]

cp's OEIS Frontend

A340814 Array read by antidiagonals: T(n,k) is the number of unlabeled oriented edge-rooted k-gonal 2-trees with n oriented polygons, n >= 0, k >= 2.

Table of values

List of values