A086645 - cp's OEIS frontend

A086645 Triangle read by rows: T(n, k) = binomial(2n, 2k).

n	a(n)
0	1
1	1
2	1
3	1
4	6
5	1
6	1
7	15
8	15
9	1
10	1
11	28
12	70
13	28
14	1
15	1
16	45
17	210
18	210
19	45
20	1
21	1
22	66
23	495
24	924
25	495
26	66
27	1
28	1
29	91
30	1001
31	3003
32	3003
33	1001
34	91
35	1
36	1
37	120
38	1820
39	8008
40	12870
41	8008
42	1820
43	120
44	1
45	1
46	153
47	3060
48	18564
49	43758
50	43758
51	18564
52	3060
53	153
54	1
55	1
56	190
57	4845
58	38760

[1, 1, 1, 1, 6, 1, 1, 15, 15, 1, 1, 28, 70, 28, 1, 1, 45, 210, 210, 45, 1, 1, 66, 495, 924, 495, 66, 1, 1, 91, 1001, 3003, 3003, 1001, 91, 1, 1, 120, 1820, 8008, 12870, 8008, 1820, 120, 1, 1, 153, 3060, 18564, 43758, 43758, 18564, 3060, 153, 1, 1, 190, 4845, 38760]

cp's OEIS Frontend

A086645 Triangle read by rows: T(n, k) = binomial(2n, 2k).

Table of values

List of values