A131061 - cp's OEIS frontend

A131061 Triangle read by rows: T(n,k) = 4*binomial(n,k) - 3 for 0 <= k <= n.

n	a(n)
0	1
1	1
2	1
3	1
4	5
5	1
6	1
7	9
8	9
9	1
10	1
11	13
12	21
13	13
14	1
15	1
16	17
17	37
18	37
19	17
20	1
21	1
22	21
23	57
24	77
25	57
26	21
27	1
28	1
29	25
30	81
31	137
32	137
33	81
34	25
35	1
36	1
37	29
38	109
39	221
40	277
41	221
42	109
43	29
44	1
45	1
46	33
47	141
48	333
49	501
50	501
51	333
52	141
53	33
54	1
55	1
56	37
57	177
58	477
59	837
60	1005
61	837
62	477
63	177
64	37
65	1

[1, 1, 1, 1, 5, 1, 1, 9, 9, 1, 1, 13, 21, 13, 1, 1, 17, 37, 37, 17, 1, 1, 21, 57, 77, 57, 21, 1, 1, 25, 81, 137, 137, 81, 25, 1, 1, 29, 109, 221, 277, 221, 109, 29, 1, 1, 33, 141, 333, 501, 501, 333, 141, 33, 1, 1, 37, 177, 477, 837, 1005, 837, 477, 177, 37, 1]

cp's OEIS Frontend

A131061 Triangle read by rows: T(n,k) = 4*binomial(n,k) - 3 for 0 <= k <= n.

Table of values

List of values