A269950 - cp's OEIS frontend

A269950 Triangle read by rows, T(n,k) = denominator(binomial(1/2,n-k))*binomial(n+1/2, k+1/2), for n>=0 and 0<=k<=n.

n	a(n)
0	1
1	3
2	1
3	15
4	5
5	1
6	35
7	35
8	7
9	1
10	315
11	105
12	63
13	9
14	1
15	693
16	1155
17	231
18	99
19	11
20	1
21	3003
22	3003
23	3003
24	429
25	143
26	13
27	1
28	6435
29	15015
30	9009
31	6435
32	715
33	195
34	15
35	1
36	109395
37	36465
38	51051
39	21879
40	12155
41	1105
42	255
43	17
44	1
45	230945
46	692835
47	138567
48	138567
49	46189
50	20995
51	1615
52	323
53	19
54	1

[1, 3, 1, 15, 5, 1, 35, 35, 7, 1, 315, 105, 63, 9, 1, 693, 1155, 231, 99, 11, 1, 3003, 3003, 3003, 429, 143, 13, 1, 6435, 15015, 9009, 6435, 715, 195, 15, 1, 109395, 36465, 51051, 21879, 12155, 1105, 255, 17, 1, 230945, 692835, 138567, 138567, 46189, 20995, 1615, 323, 19, 1]

cp's OEIS Frontend

A269950 Triangle read by rows, T(n,k) = denominator(binomial(1/2,n-k))*binomial(n+1/2, k+1/2), for n>=0 and 0<=k<=n.

Table of values

List of values