A281000 - cp's OEIS frontend

A281000 Triangle read by rows: T(n,k) = binomial(2n+1, 2k+1)binomial(2n-2*k, n-k)/(n+1-k) for 0 <= k <= n.

n	a(n)
0	1
1	3
2	1
3	10
4	10
5	1
6	35
7	70
8	21
9	1
10	126
11	420
12	252
13	36
14	1
15	462
16	2310
17	2310
18	660
19	55
20	1
21	1716
22	12012
23	18018
24	8580
25	1430
26	78
27	1
28	6435
29	60060
30	126126
31	90090
32	25025
33	2730
34	105
35	1
36	24310
37	291720
38	816816
39	816816
40	340340
41	61880
42	4760
43	136
44	1
45	92378
46	1385670
47	4988412
48	6651216
49	3879876
50	1058148
51	135660
52	7752
53	171
54	1

[1, 3, 1, 10, 10, 1, 35, 70, 21, 1, 126, 420, 252, 36, 1, 462, 2310, 2310, 660, 55, 1, 1716, 12012, 18018, 8580, 1430, 78, 1, 6435, 60060, 126126, 90090, 25025, 2730, 105, 1, 24310, 291720, 816816, 816816, 340340, 61880, 4760, 136, 1, 92378, 1385670, 4988412, 6651216, 3879876, 1058148, 135660, 7752, 171, 1]

cp's OEIS Frontend

A281000 Triangle read by rows: T(n,k) = binomial(2n+1, 2k+1)binomial(2n-2*k, n-k)/(n+1-k) for 0 <= k <= n.

Table of values

List of values

cp's OEIS Frontend

A281000 Triangle read by rows: T(n,k) = binomial(2*n+1, 2*k+1)*binomial(2*n-2*k, n-k)/(n+1-k) for 0 <= k <= n.

Table of values

List of values

A281000 Triangle read by rows: T(n,k) = binomial(2n+1, 2k+1)binomial(2n-2*k, n-k)/(n+1-k) for 0 <= k <= n.