A141597 - cp's OEIS frontend

A141597 Triangle T(n,k) = 2*binomial(n,k)^2 - 1, read by rows, 0<=k<=n.

n	a(n)
0	1
1	1
2	1
3	1
4	7
5	1
6	1
7	17
8	17
9	1
10	1
11	31
12	71
13	31
14	1
15	1
16	49
17	199
18	199
19	49
20	1
21	1
22	71
23	449
24	799
25	449
26	71
27	1
28	1
29	97
30	881
31	2449
32	2449
33	881
34	97
35	1
36	1
37	127
38	1567
39	6271
40	9799
41	6271
42	1567
43	127
44	1
45	1
46	161
47	2591
48	14111
49	31751
50	31751
51	14111
52	2591
53	161
54	1
55	1
56	199
57	4049
58	28799
59	88199
60	127007
61	88199
62	28799
63	4049
64	199
65	1

[1, 1, 1, 1, 7, 1, 1, 17, 17, 1, 1, 31, 71, 31, 1, 1, 49, 199, 199, 49, 1, 1, 71, 449, 799, 449, 71, 1, 1, 97, 881, 2449, 2449, 881, 97, 1, 1, 127, 1567, 6271, 9799, 6271, 1567, 127, 1, 1, 161, 2591, 14111, 31751, 31751, 14111, 2591, 161, 1, 1, 199, 4049, 28799, 88199, 127007, 88199, 28799, 4049, 199, 1]

cp's OEIS Frontend

A141597 Triangle T(n,k) = 2*binomial(n,k)^2 - 1, read by rows, 0<=k<=n.

Table of values

List of values