A155863 - cp's OEIS frontend

A155863 Triangle T(n,k) = n(n^2 - 1)binomial(n-2, k-1) for 1 <= k <= n-1, n >= 2, and T(n,0) = T(n,n) = 1 for n >= 0, read by rows.

n	a(n)
0	1
1	1
2	1
3	1
4	6
5	1
6	1
7	24
8	24
9	1
10	1
11	60
12	120
13	60
14	1
15	1
16	120
17	360
18	360
19	120
20	1
21	1
22	210
23	840
24	1260
25	840
26	210
27	1
28	1
29	336
30	1680
31	3360
32	3360
33	1680
34	336
35	1
36	1
37	504
38	3024
39	7560
40	10080
41	7560
42	3024
43	504
44	1
45	1
46	720
47	5040
48	15120
49	25200
50	25200
51	15120
52	5040
53	720
54	1
55	1
56	990
57	7920
58	27720
59	55440
60	69300
61	55440
62	27720
63	7920
64	990
65	1

[1, 1, 1, 1, 6, 1, 1, 24, 24, 1, 1, 60, 120, 60, 1, 1, 120, 360, 360, 120, 1, 1, 210, 840, 1260, 840, 210, 1, 1, 336, 1680, 3360, 3360, 1680, 336, 1, 1, 504, 3024, 7560, 10080, 7560, 3024, 504, 1, 1, 720, 5040, 15120, 25200, 25200, 15120, 5040, 720, 1, 1, 990, 7920, 27720, 55440, 69300, 55440, 27720, 7920, 990, 1]

cp's OEIS Frontend

A155863 Triangle T(n,k) = n(n^2 - 1)binomial(n-2, k-1) for 1 <= k <= n-1, n >= 2, and T(n,0) = T(n,n) = 1 for n >= 0, read by rows.

Table of values

List of values

cp's OEIS Frontend

A155863 Triangle T(n,k) = n*(n^2 - 1)*binomial(n-2, k-1) for 1 <= k <= n-1, n >= 2, and T(n,0) = T(n,n) = 1 for n >= 0, read by rows.

Table of values

List of values

A155863 Triangle T(n,k) = n(n^2 - 1)binomial(n-2, k-1) for 1 <= k <= n-1, n >= 2, and T(n,0) = T(n,n) = 1 for n >= 0, read by rows.