A173505 - cp's OEIS frontend

A173505 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 = 4, read by rows.

n	a(n)
0	1
1	1
2	1
3	1
4	3
5	1
6	1
7	45
8	45
9	1
10	1
11	2835
12	42525
13	2835
14	1
15	1
16	722925
17	683164125
18	683164125
19	722925
20	1
21	1
22	739552275
23	178213609468125
24	11227457396491875
25	178213609468125
26	739552275
27	1
28	1
29	3028466566125
30	746569779579727228125
31	11993643508948317919828125
32	11993643508948317919828125
33	746569779579727228125
34	3028466566125
35	1

[1, 1, 1, 1, 3, 1, 1, 45, 45, 1, 1, 2835, 42525, 2835, 1, 1, 722925, 683164125, 683164125, 722925, 1, 1, 739552275, 178213609468125, 11227457396491875, 178213609468125, 739552275, 1, 1, 3028466566125, 746569779579727228125, 11993643508948317919828125, 11993643508948317919828125, 746569779579727228125, 3028466566125, 1]

cp's OEIS Frontend

A173505 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 = 4, read by rows.

Table of values

List of values