A119301 - cp's OEIS frontend

A119301 Triangle read by rows: T(n,k) = binomial(3*n-k,n-k).

n	a(n)
0	1
1	3
2	1
3	15
4	5
5	1
6	84
7	28
8	7
9	1
10	495
11	165
12	45
13	9
14	1
15	3003
16	1001
17	286
18	66
19	11
20	1
21	18564
22	6188
23	1820
24	455
25	91
26	13
27	1
28	116280
29	38760
30	11628
31	3060
32	680
33	120
34	15
35	1
36	735471
37	245157
38	74613
39	20349
40	4845
41	969
42	153
43	17
44	1
45	4686825
46	1562275
47	480700
48	134596
49	33649
50	7315

[1, 3, 1, 15, 5, 1, 84, 28, 7, 1, 495, 165, 45, 9, 1, 3003, 1001, 286, 66, 11, 1, 18564, 6188, 1820, 455, 91, 13, 1, 116280, 38760, 11628, 3060, 680, 120, 15, 1, 735471, 245157, 74613, 20349, 4845, 969, 153, 17, 1, 4686825, 1562275, 480700, 134596, 33649, 7315]

cp's OEIS Frontend

A119301 Triangle read by rows: T(n,k) = binomial(3*n-k,n-k).

Table of values

List of values