A173503 - cp's OEIS frontend

A173503 Triangle T(n, k, q) = c(n, q)/(c(k, q)*c(n-k, q)) where c(n,q) = Product_{j=1..n} (q^j -1)^(n-j) and q = 2, read by rows.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	3
8	3
9	1
10	1
11	21
12	63
13	21
14	1
15	1
16	315
17	6615
18	6615
19	315
20	1
21	1
22	9765
23	3075975
24	21531825
25	3075975
26	9765
27	1
28	1
29	615195
30	6007379175
31	630774813375
32	630774813375
33	6007379175
34	615195
35	1
36	1
37	78129765
38	48065040779175
39	156451707736214625
40	2346775616043219375
41	156451707736214625
42	48065040779175
43	78129765
44	1

[1, 1, 1, 1, 1, 1, 1, 3, 3, 1, 1, 21, 63, 21, 1, 1, 315, 6615, 6615, 315, 1, 1, 9765, 3075975, 21531825, 3075975, 9765, 1, 1, 615195, 6007379175, 630774813375, 630774813375, 6007379175, 615195, 1, 1, 78129765, 48065040779175, 156451707736214625, 2346775616043219375, 156451707736214625, 48065040779175, 78129765, 1]

cp's OEIS Frontend

A173503 Triangle T(n, k, q) = c(n, q)/(c(k, q)*c(n-k, q)) where c(n,q) = Product_{j=1..n} (q^j -1)^(n-j) and q = 2, read by rows.

Table of values

List of values