A280580 - cp's OEIS frontend

A280580 Triangle read by rows: T(n,k) = binomial(2n,2k)binomial(2n-2*k,n-k)/(n+1-k) for 0<=k<=n.

n	a(n)
0	1
1	1
2	1
3	2
4	6
5	1
6	5
7	30
8	15
9	1
10	14
11	140
12	140
13	28
14	1
15	42
16	630
17	1050
18	420
19	45
20	1
21	132
22	2772
23	6930
24	4620
25	990
26	66
27	1
28	429
29	12012
30	42042
31	42042
32	15015
33	2002
34	91
35	1
36	1430
37	51480
38	240240
39	336336
40	180180
41	40040
42	3640
43	120
44	1
45	4862
46	218790
47	1312740
48	2450448
49	1837836
50	612612
51	92820
52	6120
53	153
54	1

[1, 1, 1, 2, 6, 1, 5, 30, 15, 1, 14, 140, 140, 28, 1, 42, 630, 1050, 420, 45, 1, 132, 2772, 6930, 4620, 990, 66, 1, 429, 12012, 42042, 42042, 15015, 2002, 91, 1, 1430, 51480, 240240, 336336, 180180, 40040, 3640, 120, 1, 4862, 218790, 1312740, 2450448, 1837836, 612612, 92820, 6120, 153, 1]

cp's OEIS Frontend

A280580 Triangle read by rows: T(n,k) = binomial(2n,2k)binomial(2n-2*k,n-k)/(n+1-k) for 0<=k<=n.

Table of values

List of values

cp's OEIS Frontend

A280580 Triangle read by rows: T(n,k) = binomial(2*n,2*k)*binomial(2*n-2*k,n-k)/(n+1-k) for 0<=k<=n.

Table of values

List of values

A280580 Triangle read by rows: T(n,k) = binomial(2n,2k)binomial(2n-2*k,n-k)/(n+1-k) for 0<=k<=n.