A172358 - cp's OEIS frontend

A172358 Triangle read by rows: T(n,k) = round(c(n)/(c(k)*c(n-k))) where c are partial products of a sequence defined in comments.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	1
11	3
12	3
13	3
14	1
15	1
16	3
17	9
18	9
19	3
20	1
21	1
22	5
23	15
24	45
25	15
26	5
27	1
28	1
29	9
30	45
31	135
32	135
33	45
34	9
35	1
36	1
37	11
38	99
39	495
40	495
41	495
42	99
43	11
44	1
45	1
46	19
47	209
48	1881
49	3135
50	3135
51	1881
52	209
53	19
54	1
55	1
56	29
57	551
58	6061
59	18183
60	30305
61	18183
62	6061
63	551
64	29
65	1

[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 3, 3, 1, 1, 3, 9, 9, 3, 1, 1, 5, 15, 45, 15, 5, 1, 1, 9, 45, 135, 135, 45, 9, 1, 1, 11, 99, 495, 495, 495, 99, 11, 1, 1, 19, 209, 1881, 3135, 3135, 1881, 209, 19, 1, 1, 29, 551, 6061, 18183, 30305, 18183, 6061, 551, 29, 1]

cp's OEIS Frontend

A172358 Triangle read by rows: T(n,k) = round(c(n)/(c(k)*c(n-k))) where c are partial products of a sequence defined in comments.

Table of values

List of values