A111910 - cp's OEIS frontend

A111910 Square array read by antidiagonals: S(p,q) = (p+q+1)!(2p+2q+1)!/((p+1)!(2p+1)!(q+1)!(2q+1)!) (p,q>=0).

n	a(n)
0	1
1	1
2	1
3	1
4	5
5	1
6	1
7	14
8	14
9	1
10	1
11	30
12	84
13	30
14	1
15	1
16	55
17	330
18	330
19	55
20	1
21	1
22	91
23	1001
24	2145
25	1001
26	91
27	1
28	1
29	140
30	2548
31	10010
32	10010
33	2548
34	140
35	1
36	1
37	204
38	5712
39	37128
40	68068
41	37128
42	5712
43	204
44	1
45	1
46	285
47	11628
48	116280
49	352716
50	352716
51	116280
52	11628
53	285
54	1

[1, 1, 1, 1, 5, 1, 1, 14, 14, 1, 1, 30, 84, 30, 1, 1, 55, 330, 330, 55, 1, 1, 91, 1001, 2145, 1001, 91, 1, 1, 140, 2548, 10010, 10010, 2548, 140, 1, 1, 204, 5712, 37128, 68068, 37128, 5712, 204, 1, 1, 285, 11628, 116280, 352716, 352716, 116280, 11628, 285, 1]

cp's OEIS Frontend

A111910 Square array read by antidiagonals: S(p,q) = (p+q+1)!(2p+2q+1)!/((p+1)!(2p+1)!(q+1)!(2q+1)!) (p,q>=0).

Table of values

List of values