A370420 - cp's OEIS frontend

A370420 Number of genus g partitions of the n-set which are partitions into k nonempty subsets (blocks). Flattened 3-dimensional array read by n, then by g:0..floor(n-1)/2, then by k:1..n.

n	a(n)
1	1
2	1
3	1
4	1
5	3
6	1
7	1
8	6
9	6
10	1
11	0
12	1
13	0
14	0
15	1
16	10
17	20
18	10
19	1
20	0
21	5
22	5
23	0
24	0
25	1
26	15
27	50
28	50
29	15
30	1
31	0
32	15
33	40
34	15
35	0
36	0
37	0
38	1
39	0
40	0
41	0
42	0
43	1
44	21
45	105
46	175
47	105
48	21
49	1
50	0
51	35
52	175
53	175
54	35
55	0
56	0
57	0
58	7
59	21
60	0
61	0
62	0
63	0
64	1
65	28
66	196
67	490
68	490
69	196
70	28
71	1
72	0
73	70
74	560
75	1050
76	560
77	70
78	0
79	0
80	0
81	28
82	210
83	161
84	0
85	0
86	0
87	0
88	0
89	1
90	0
91	0
92	0
93	0
94	0
95	0

[1, 1, 1, 1, 3, 1, 1, 6, 6, 1, 0, 1, 0, 0, 1, 10, 20, 10, 1, 0, 5, 5, 0, 0, 1, 15, 50, 50, 15, 1, 0, 15, 40, 15, 0, 0, 0, 1, 0, 0, 0, 0, 1, 21, 105, 175, 105, 21, 1, 0, 35, 175, 175, 35, 0, 0, 0, 7, 21, 0, 0, 0, 0, 1, 28, 196, 490, 490, 196, 28, 1, 0, 70, 560, 1050, 560, 70, 0, 0, 0, 28, 210, 161, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0]

cp's OEIS Frontend

A370420 Number of genus g partitions of the n-set which are partitions into k nonempty subsets (blocks). Flattened 3-dimensional array read by n, then by g:0..floor(n-1)/2, then by k:1..n.

Table of values

List of values