A303913 - cp's OEIS frontend

A303913 Array read by antidiagonals: T(n,k) is the number of (planar) unlabeled asymmetric k-ary cacti having n polygons.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	0
6	1
7	1
8	0
9	0
10	1
11	1
12	0
13	1
14	0
15	1
16	1
17	0
18	3
19	2
20	0
21	1
22	1
23	0
24	6
25	10
26	8
27	0
28	1
29	1
30	0
31	10
32	28
33	54
34	18
35	0
36	1
37	1
38	0
39	15
40	60
41	193
42	222
43	61
44	0
45	1
46	1
47	0
48	21
49	110
50	505
51	1140
52	1107
53	170
54	0
55	1
56	1
57	0
58	28
59	182
60	1095
61	3876
62	7688
63	5346
64	538
65	0
66	1
67	1
68	0
69	36
70	280
71	2093
72	10326
73	33125
74	52364
75	27399
76	1654
77	0

[1, 1, 1, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 1, 0, 3, 2, 0, 1, 1, 0, 6, 10, 8, 0, 1, 1, 0, 10, 28, 54, 18, 0, 1, 1, 0, 15, 60, 193, 222, 61, 0, 1, 1, 0, 21, 110, 505, 1140, 1107, 170, 0, 1, 1, 0, 28, 182, 1095, 3876, 7688, 5346, 538, 0, 1, 1, 0, 36, 280, 2093, 10326, 33125, 52364, 27399, 1654, 0]

cp's OEIS Frontend

A303913 Array read by antidiagonals: T(n,k) is the number of (planar) unlabeled asymmetric k-ary cacti having n polygons.

Table of values

List of values