A174377 - cp's OEIS frontend

A174377 Triangle T(n, k) = n!q^k/(n-k)! if floor(n/2) > k-1 otherwise n!q^(n-k)/k!, with q = 3, read by rows.

n	a(n)
0	1
1	1
2	1
3	1
4	6
5	1
6	1
7	9
8	9
9	1
10	1
11	12
12	108
13	12
14	1
15	1
16	15
17	180
18	180
19	15
20	1
21	1
22	18
23	270
24	3240
25	270
26	18
27	1
28	1
29	21
30	378
31	5670
32	5670
33	378
34	21
35	1
36	1
37	24
38	504
39	9072
40	136080
41	9072
42	504
43	24
44	1
45	1
46	27
47	648
48	13608
49	244944
50	244944
51	13608
52	648
53	27
54	1
55	1
56	30
57	810
58	19440
59	408240
60	7348320
61	408240
62	19440
63	810
64	30
65	1

[1, 1, 1, 1, 6, 1, 1, 9, 9, 1, 1, 12, 108, 12, 1, 1, 15, 180, 180, 15, 1, 1, 18, 270, 3240, 270, 18, 1, 1, 21, 378, 5670, 5670, 378, 21, 1, 1, 24, 504, 9072, 136080, 9072, 504, 24, 1, 1, 27, 648, 13608, 244944, 244944, 13608, 648, 27, 1, 1, 30, 810, 19440, 408240, 7348320, 408240, 19440, 810, 30, 1]

cp's OEIS Frontend

A174377 Triangle T(n, k) = n!q^k/(n-k)! if floor(n/2) > k-1 otherwise n!q^(n-k)/k!, with q = 3, read by rows.

Table of values

List of values

cp's OEIS Frontend

A174377 Triangle T(n, k) = n!*q^k/(n-k)! if floor(n/2) > k-1 otherwise n!*q^(n-k)/k!, with q = 3, read by rows.

Table of values

List of values

A174377 Triangle T(n, k) = n!q^k/(n-k)! if floor(n/2) > k-1 otherwise n!q^(n-k)/k!, with q = 3, read by rows.