A258758 - cp's OEIS frontend

A258758 Triangle T(n,k) = C(n+k-1,k)C(2n-1,n-k).

n	a(n)
0	1
1	1
2	1
3	3
4	6
5	3
6	10
7	30
8	30
9	10
10	35
11	140
12	210
13	140
14	35
15	126
16	630
17	1260
18	1260
19	630
20	126
21	462
22	2772
23	6930
24	9240
25	6930
26	2772
27	462
28	1716
29	12012
30	36036
31	60060
32	60060
33	36036
34	12012
35	1716
36	6435
37	51480
38	180180
39	360360
40	450450
41	360360
42	180180
43	51480

[1, 1, 1, 3, 6, 3, 10, 30, 30, 10, 35, 140, 210, 140, 35, 126, 630, 1260, 1260, 630, 126, 462, 2772, 6930, 9240, 6930, 2772, 462, 1716, 12012, 36036, 60060, 60060, 36036, 12012, 1716, 6435, 51480, 180180, 360360, 450450, 360360, 180180, 51480]

cp's OEIS Frontend

A258758 Triangle T(n,k) = C(n+k-1,k)C(2n-1,n-k).

Table of values

List of values

cp's OEIS Frontend

A258758 Triangle T(n,k) = C(n+k-1,k)*C(2*n-1,n-k).

Table of values

List of values

A258758 Triangle T(n,k) = C(n+k-1,k)C(2n-1,n-k).