A174119 - cp's OEIS frontend

A174119 Triangle T(n, k) = ((n-k)/6)binomial(n-1, k-1)binomial(2n, 2k) with T(n, 0) = T(n, n) = 1, read by rows.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	5
8	5
9	1
10	1
11	14
12	70
13	14
14	1
15	1
16	30
17	420
18	420
19	30
20	1
21	1
22	55
23	1650
24	4620
25	1650
26	55
27	1
28	1
29	91
30	5005
31	30030
32	30030
33	5005
34	91
35	1
36	1
37	140
38	12740
39	140140
40	300300
41	140140
42	12740
43	140
44	1
45	1
46	204
47	28560
48	519792
49	2042040
50	2042040
51	519792
52	28560
53	204
54	1
55	1
56	285
57	58140
58	1627920
59	10581480
60	19399380
61	10581480
62	1627920
63	58140
64	285
65	1

[1, 1, 1, 1, 1, 1, 1, 5, 5, 1, 1, 14, 70, 14, 1, 1, 30, 420, 420, 30, 1, 1, 55, 1650, 4620, 1650, 55, 1, 1, 91, 5005, 30030, 30030, 5005, 91, 1, 1, 140, 12740, 140140, 300300, 140140, 12740, 140, 1, 1, 204, 28560, 519792, 2042040, 2042040, 519792, 28560, 204, 1, 1, 285, 58140, 1627920, 10581480, 19399380, 10581480, 1627920, 58140, 285, 1]

cp's OEIS Frontend

A174119 Triangle T(n, k) = ((n-k)/6)binomial(n-1, k-1)binomial(2n, 2k) with T(n, 0) = T(n, n) = 1, read by rows.

Table of values

List of values

cp's OEIS Frontend

A174119 Triangle T(n, k) = ((n-k)/6)*binomial(n-1, k-1)*binomial(2*n, 2*k) with T(n, 0) = T(n, n) = 1, read by rows.

Table of values

List of values

A174119 Triangle T(n, k) = ((n-k)/6)binomial(n-1, k-1)binomial(2n, 2k) with T(n, 0) = T(n, n) = 1, read by rows.