cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A325982 Triangle read by rows: T(n, k) = binomial(n - 1, k - 1) - binomial(n - k - 1, k - 1) + 1, with n >= 1 and 0 <= k < n/2.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 3
10 1
11 1
12 3
13 1
14 1
15 3
16 13
17 1
18 1
19 3
20 16
21 1
22 1
23 3
24 19
25 53
26 1
27 1
28 3
29 22
30 75
31 1
32 1
33 3
34 25
35 101
36 206
37 1
38 1
39 3
40 28
41 131
42 316
43 1
44 1
45 3
46 31
47 165
48 461
49 787
50 1
51 1
52 3
53 34
54 203
55 646
56 1267
57 1
58 1
59 3
60 37
61 245
62 876
63 1947
64 2997
65 1
66 1
67 3
68 40
69 291
70 1156
71 2878
72 4978

List of values

[1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 3, 1, 1, 3, 13, 1, 1, 3, 16, 1, 1, 3, 19, 53, 1, 1, 3, 22, 75, 1, 1, 3, 25, 101, 206, 1, 1, 3, 28, 131, 316, 1, 1, 3, 31, 165, 461, 787, 1, 1, 3, 34, 203, 646, 1267, 1, 1, 3, 37, 245, 876, 1947, 2997, 1, 1, 3, 40, 291, 1156, 2878, 4978]