A256158 - cp's OEIS frontend

A256158 Triangular array of numbers of 2-polymatroids of rank k on n labeled points, for n>=0, 0<=k<=2n.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	3
6	6
7	3
8	1
9	1
10	7
11	29
12	41
13	29
14	7
15	1
16	1
17	15
18	135
19	477
20	784
21	477
22	135
23	15
24	1
25	1
26	31
27	642
28	5957
29	27375
30	41695
31	27375
32	5957
33	642
34	31
35	1
36	1
37	63
38	3199
39	87477
40	1554077
41	7109189
42	21937982
43	7109189
44	1554077
45	87477
46	3199
47	63
48	1
49	1
50	127
51	16879
52	1604768
53	189213842
54	3559635761
55	733133160992
56	86322358307
57	733133160992
58	3559635761
59	189213842
60	1604768
61	16879
62	127
63	1

[1, 1, 1, 1, 1, 3, 6, 3, 1, 1, 7, 29, 41, 29, 7, 1, 1, 15, 135, 477, 784, 477, 135, 15, 1, 1, 31, 642, 5957, 27375, 41695, 27375, 5957, 642, 31, 1, 1, 63, 3199, 87477, 1554077, 7109189, 21937982, 7109189, 1554077, 87477, 3199, 63, 1, 1, 127, 16879, 1604768, 189213842, 3559635761, 733133160992, 86322358307, 733133160992, 3559635761, 189213842, 1604768, 16879, 127, 1]

cp's OEIS Frontend

A256158 Triangular array of numbers of 2-polymatroids of rank k on n labeled points, for n>=0, 0<=k<=2n.

Table of values

List of values