A144484 - cp's OEIS frontend

A144484 Triangle read by rows: T(n, k) = binomial(3*n+1-k, n-k) for n, k >= 0.

n	a(n)
0	1
1	4
2	1
3	21
4	6
5	1
6	120
7	36
8	8
9	1
10	715
11	220
12	55
13	10
14	1
15	4368
16	1365
17	364
18	78
19	12
20	1
21	27132
22	8568
23	2380
24	560
25	105
26	14
27	1
28	170544
29	54264
30	15504
31	3876
32	816
33	136
34	16
35	1
36	1081575
37	346104
38	100947
39	26334
40	5985
41	1140
42	171
43	18
44	1
45	6906900
46	2220075
47	657800
48	177100

[1, 4, 1, 21, 6, 1, 120, 36, 8, 1, 715, 220, 55, 10, 1, 4368, 1365, 364, 78, 12, 1, 27132, 8568, 2380, 560, 105, 14, 1, 170544, 54264, 15504, 3876, 816, 136, 16, 1, 1081575, 346104, 100947, 26334, 5985, 1140, 171, 18, 1, 6906900, 2220075, 657800, 177100]

cp's OEIS Frontend

A144484 Triangle read by rows: T(n, k) = binomial(3*n+1-k, n-k) for n, k >= 0.

Table of values

List of values