A068555 - cp's OEIS frontend

A068555 Triangle read by rows in which row n contains (2i)!(2j)!/(i!j!*(i+j)!) for i + j = n, i = 0..n.

n	a(n)
0	1
1	2
2	2
3	6
4	2
5	6
6	20
7	4
8	4
9	20
10	70
11	10
12	6
13	10
14	70
15	252
16	28
17	12
18	12
19	28
20	252
21	924
22	84
23	28
24	20
25	28
26	84
27	924
28	3432
29	264
30	72
31	40
32	40
33	72
34	264
35	3432
36	12870
37	858
38	198
39	90
40	70
41	90
42	198
43	858
44	12870
45	48620
46	2860
47	572
48	220
49	140
50	140
51	220
52	572
53	2860
54	48620
55	184756
56	9724

[1, 2, 2, 6, 2, 6, 20, 4, 4, 20, 70, 10, 6, 10, 70, 252, 28, 12, 12, 28, 252, 924, 84, 28, 20, 28, 84, 924, 3432, 264, 72, 40, 40, 72, 264, 3432, 12870, 858, 198, 90, 70, 90, 198, 858, 12870, 48620, 2860, 572, 220, 140, 140, 220, 572, 2860, 48620, 184756, 9724]

cp's OEIS Frontend

A068555 Triangle read by rows in which row n contains (2i)!(2j)!/(i!j!*(i+j)!) for i + j = n, i = 0..n.

Table of values

List of values

cp's OEIS Frontend

A068555 Triangle read by rows in which row n contains (2i)!*(2j)!/(i!*j!*(i+j)!) for i + j = n, i = 0..n.

Table of values

List of values

A068555 Triangle read by rows in which row n contains (2i)!(2j)!/(i!j!*(i+j)!) for i + j = n, i = 0..n.