A034328 - cp's OEIS frontend

A034328 Triangle read by rows: T(n,k) = number of loopless, regular k X n-matrix matroids of dimension k (or n-matroids of rank k).

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	1
7	3
8	3
9	1
10	1
11	4
12	6
13	4
14	1
15	1
16	6
17	12
18	11
19	5
20	1
21	1
22	7
23	20
24	26
25	17
26	6
27	1
28	1
29	9
30	33
31	58
32	52
33	25
34	7
35	1
36	1
37	11
38	52
39	121
40	146
41	95
42	35
43	8
44	1
45	1
46	13
47	78
48	240
49	388
50	334
51	162
52	47
53	9
54	1
55	1
56	15
57	113
58	454
59	975
60	1123
61	710
62	262
63	61
64	10
65	1
66	1
67	18
68	163
69	835
70	2365

[1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 4, 6, 4, 1, 1, 6, 12, 11, 5, 1, 1, 7, 20, 26, 17, 6, 1, 1, 9, 33, 58, 52, 25, 7, 1, 1, 11, 52, 121, 146, 95, 35, 8, 1, 1, 13, 78, 240, 388, 334, 162, 47, 9, 1, 1, 15, 113, 454, 975, 1123, 710, 262, 61, 10, 1, 1, 18, 163, 835, 2365]

cp's OEIS Frontend

A034328 Triangle read by rows: T(n,k) = number of loopless, regular k X n-matrix matroids of dimension k (or n-matroids of rank k).

Table of values

List of values