A055340 - cp's OEIS frontend

A055340 Triangle read by rows: number of mobiles (circular rooted trees) with n nodes and k leaves.

n	a(n)
1	1
2	1
3	0
4	1
5	1
6	0
7	1
8	2
9	1
10	0
11	1
12	4
13	3
14	1
15	0
16	1
17	6
18	8
19	4
20	1
21	0
22	1
23	9
24	19
25	16
26	5
27	1
28	0
29	1
30	12
31	37
32	46
33	25
34	6
35	1
36	0
37	1
38	16
39	66
40	118
41	96
42	40
43	7
44	1
45	0
46	1
47	20
48	110
49	260
50	300
51	184
52	56
53	8
54	1
55	0
56	1
57	25
58	172
59	527
60	811
61	688
62	318
63	80
64	9
65	1
66	0
67	1
68	30
69	257
70	985
71	1951
72	2178
73	1408
74	524
75	105
76	10
77	1
78	0

[1, 1, 0, 1, 1, 0, 1, 2, 1, 0, 1, 4, 3, 1, 0, 1, 6, 8, 4, 1, 0, 1, 9, 19, 16, 5, 1, 0, 1, 12, 37, 46, 25, 6, 1, 0, 1, 16, 66, 118, 96, 40, 7, 1, 0, 1, 20, 110, 260, 300, 184, 56, 8, 1, 0, 1, 25, 172, 527, 811, 688, 318, 80, 9, 1, 0, 1, 30, 257, 985, 1951, 2178, 1408, 524, 105, 10, 1, 0]

cp's OEIS Frontend

A055340 Triangle read by rows: number of mobiles (circular rooted trees) with n nodes and k leaves.

Table of values

List of values