A155516 - cp's OEIS frontend

A155516 Triangle T(n, k) = binomial(2n, 2k)binomial(2n+1, 2k+1)/(2n-2*k+1), read by rows.

n	a(n)
0	1
1	1
2	1
3	1
4	20
5	1
6	1
7	105
8	105
9	1
10	1
11	336
12	1764
13	336
14	1
15	1
16	825
17	13860
18	13860
19	825
20	1
21	1
22	1716
23	70785
24	226512
25	70785
26	1716
27	1
28	1
29	3185
30	273273
31	2147145
32	2147145
33	273273
34	3185
35	1
36	1
37	5440
38	866320
39	14158144
40	34763300
41	14158144
42	866320
43	5440
44	1
45	1
46	8721
47	2372112
48	71954064
49	367479684
50	367479684
51	71954064
52	2372112
53	8721
54	1

[1, 1, 1, 1, 20, 1, 1, 105, 105, 1, 1, 336, 1764, 336, 1, 1, 825, 13860, 13860, 825, 1, 1, 1716, 70785, 226512, 70785, 1716, 1, 1, 3185, 273273, 2147145, 2147145, 273273, 3185, 1, 1, 5440, 866320, 14158144, 34763300, 14158144, 866320, 5440, 1, 1, 8721, 2372112, 71954064, 367479684, 367479684, 71954064, 2372112, 8721, 1]

cp's OEIS Frontend

A155516 Triangle T(n, k) = binomial(2n, 2k)binomial(2n+1, 2k+1)/(2n-2*k+1), read by rows.

Table of values

List of values

cp's OEIS Frontend

A155516 Triangle T(n, k) = binomial(2*n, 2*k)*binomial(2*n+1, 2*k+1)/(2*n-2*k+1), read by rows.

Table of values

List of values

A155516 Triangle T(n, k) = binomial(2n, 2k)binomial(2n+1, 2k+1)/(2n-2*k+1), read by rows.