A360560 - cp's OEIS frontend

A360560 Triangle read by rows. T(n, k) = (1/2) * C(n, k) * C(3*n - 1, n) for n > 0 and T(0, 0) = 1.

n	a(n)
0	1
1	1
2	1
3	5
4	10
5	5
6	28
7	84
8	84
9	28
10	165
11	660
12	990
13	660
14	165
15	1001
16	5005
17	10010
18	10010
19	5005
20	1001
21	6188
22	37128
23	92820
24	123760
25	92820
26	37128
27	6188
28	38760
29	271320
30	813960
31	1356600
32	1356600
33	813960
34	271320
35	38760
36	245157
37	1961256
38	6864396
39	13728792
40	17160990
41	13728792
42	6864396
43	1961256
44	245157

[1, 1, 1, 5, 10, 5, 28, 84, 84, 28, 165, 660, 990, 660, 165, 1001, 5005, 10010, 10010, 5005, 1001, 6188, 37128, 92820, 123760, 92820, 37128, 6188, 38760, 271320, 813960, 1356600, 1356600, 813960, 271320, 38760, 245157, 1961256, 6864396, 13728792, 17160990, 13728792, 6864396, 1961256, 245157]

cp's OEIS Frontend

A360560 Triangle read by rows. T(n, k) = (1/2) * C(n, k) * C(3*n - 1, n) for n > 0 and T(0, 0) = 1.

Table of values

List of values