A173077 - cp's OEIS frontend

A173077 Triangle T(n, k, q) = binomial(n, k) - 1 + q^floor(n/2)*binomial(n-2, k-1) with T(n, 0, q) = T(n, n, q) = 1 and q = 3, read by rows.

n	a(n)
0	1
1	1
2	1
3	1
4	4
5	1
6	1
7	5
8	5
9	1
10	1
11	12
12	23
13	12
14	1
15	1
16	13
17	36
18	36
19	13
20	1
21	1
22	32
23	122
24	181
25	122
26	32
27	1
28	1
29	33
30	155
31	304
32	304
33	155
34	33
35	1
36	1
37	88
38	513
39	1270
40	1689
41	1270
42	513
43	88
44	1
45	1
46	89
47	602
48	1784
49	2960
50	2960
51	1784
52	602
53	89
54	1
55	1
56	252
57	1988
58	6923
59	13817
60	17261
61	13817
62	6923
63	1988
64	252
65	1

[1, 1, 1, 1, 4, 1, 1, 5, 5, 1, 1, 12, 23, 12, 1, 1, 13, 36, 36, 13, 1, 1, 32, 122, 181, 122, 32, 1, 1, 33, 155, 304, 304, 155, 33, 1, 1, 88, 513, 1270, 1689, 1270, 513, 88, 1, 1, 89, 602, 1784, 2960, 2960, 1784, 602, 89, 1, 1, 252, 1988, 6923, 13817, 17261, 13817, 6923, 1988, 252, 1]

cp's OEIS Frontend

A173077 Triangle T(n, k, q) = binomial(n, k) - 1 + q^floor(n/2)*binomial(n-2, k-1) with T(n, 0, q) = T(n, n, q) = 1 and q = 3, read by rows.

Table of values

List of values