A361353 - cp's OEIS frontend

A361353 Triangle read by rows: T(n,k) is the number of simple quasi series-parallel matroids on [n] with rank k, 1 <= k <= n.

n	a(n)
1	1
2	0
3	1
4	0
5	1
6	1
7	0
8	0
9	5
10	1
11	0
12	0
13	15
14	16
15	1
16	0
17	0
18	0
19	175
20	42
21	1
22	0
23	0
24	0
25	735
26	1225
27	99
28	1
29	0
30	0
31	0
32	0
33	16065
34	6769
35	219
36	1
37	0
38	0
39	0
40	0
41	76545
42	204400
43	32830
44	466
45	1
46	0
47	0
48	0
49	0
50	0
51	2747745
52	2001230
53	147466
54	968
55	1
56	0
57	0
58	0
59	0
60	0
61	13835745
62	56143395
63	16813720
64	632434
65	1981
66	1

[1, 0, 1, 0, 1, 1, 0, 0, 5, 1, 0, 0, 15, 16, 1, 0, 0, 0, 175, 42, 1, 0, 0, 0, 735, 1225, 99, 1, 0, 0, 0, 0, 16065, 6769, 219, 1, 0, 0, 0, 0, 76545, 204400, 32830, 466, 1, 0, 0, 0, 0, 0, 2747745, 2001230, 147466, 968, 1, 0, 0, 0, 0, 0, 13835745, 56143395, 16813720, 632434, 1981, 1]

cp's OEIS Frontend

A361353 Triangle read by rows: T(n,k) is the number of simple quasi series-parallel matroids on [n] with rank k, 1 <= k <= n.

Table of values

List of values