A084546 - cp's OEIS frontend

A084546 Triangle read by rows: T(n,k) = C( C(n,2), k) for n >= 0, 0 <= k <= C(n,2).

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	3
6	3
7	1
8	1
9	6
10	15
11	20
12	15
13	6
14	1
15	1
16	10
17	45
18	120
19	210
20	252
21	210
22	120
23	45
24	10
25	1
26	1
27	15
28	105
29	455
30	1365
31	3003
32	5005
33	6435
34	6435
35	5005
36	3003
37	1365
38	455
39	105
40	15
41	1
42	1
43	21
44	210
45	1330
46	5985
47	20349
48	54264
49	116280
50	203490
51	293930
52	352716
53	352716
54	293930
55	203490
56	116280
57	54264
58	20349
59	5985
60	1330
61	210
62	21
63	1

[1, 1, 1, 1, 1, 3, 3, 1, 1, 6, 15, 20, 15, 6, 1, 1, 10, 45, 120, 210, 252, 210, 120, 45, 10, 1, 1, 15, 105, 455, 1365, 3003, 5005, 6435, 6435, 5005, 3003, 1365, 455, 105, 15, 1, 1, 21, 210, 1330, 5985, 20349, 54264, 116280, 203490, 293930, 352716, 352716, 293930, 203490, 116280, 54264, 20349, 5985, 1330, 210, 21, 1]

cp's OEIS Frontend

A084546 Triangle read by rows: T(n,k) = C( C(n,2), k) for n >= 0, 0 <= k <= C(n,2).

Table of values

List of values