A174451 - cp's OEIS frontend

A174451 Triangle T(n, k, q) = n!(n+1)!q^k/((n-k)!(n-k+1)!) if floor(n/2) > k-1, otherwise n!(n+1)!q^(n-k)/(k!*(k+1)!) for q = 3, read by rows.

n	a(n)
0	1
1	1
2	1
3	1
4	18
5	1
6	1
7	36
8	36
9	1
10	1
11	60
12	2160
13	60
14	1
15	1
16	90
17	5400
18	5400
19	90
20	1
21	1
22	126
23	11340
24	680400
25	11340
26	126
27	1
28	1
29	168
30	21168
31	1905120
32	1905120
33	21168
34	168
35	1
36	1
37	216
38	36288
39	4572288
40	411505920
41	4572288
42	36288
43	216
44	1
45	1
46	270
47	58320
48	9797760
49	1234517760
50	1234517760
51	9797760
52	58320
53	270
54	1

[1, 1, 1, 1, 18, 1, 1, 36, 36, 1, 1, 60, 2160, 60, 1, 1, 90, 5400, 5400, 90, 1, 1, 126, 11340, 680400, 11340, 126, 1, 1, 168, 21168, 1905120, 1905120, 21168, 168, 1, 1, 216, 36288, 4572288, 411505920, 4572288, 36288, 216, 1, 1, 270, 58320, 9797760, 1234517760, 1234517760, 9797760, 58320, 270, 1]

cp's OEIS Frontend

A174451 Triangle T(n, k, q) = n!(n+1)!q^k/((n-k)!(n-k+1)!) if floor(n/2) > k-1, otherwise n!(n+1)!q^(n-k)/(k!*(k+1)!) for q = 3, read by rows.

Table of values

List of values

cp's OEIS Frontend

A174451 Triangle T(n, k, q) = n!*(n+1)!*q^k/((n-k)!(n-k+1)!) if floor(n/2) > k-1, otherwise n!*(n+1)!*q^(n-k)/(k!*(k+1)!) for q = 3, read by rows.

Table of values

List of values

A174451 Triangle T(n, k, q) = n!(n+1)!q^k/((n-k)!(n-k+1)!) if floor(n/2) > k-1, otherwise n!(n+1)!q^(n-k)/(k!*(k+1)!) for q = 3, read by rows.