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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.

A202252 T(n,k)=Number of zero-sum -k..k arrays of n elements with adjacent element differences also in -k..k.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 3
6 3
7 1
8 3
9 9
10 7
11 1
12 5
13 17
14 31
15 15
16 1
17 5
18 27
19 81
20 107
21 33
22 1
23 7
24 41
25 171
26 397
27 387
28 75
29 1
30 7
31 57
32 309
33 1077
34 2003
35 1415
36 171
37 1
38 9
39 75
40 509
41 2385
42 6963
43 10239
44 5231
45 391
46 1
47 9
48 97
49 779
50 4643
51 18841
52 45523
53 52697
54 19477
55 899
56 1
57 11
58 121
59 1133
60 8211
61 43293
62 150523

List of values

[1, 1, 1, 1, 3, 3, 1, 3, 9, 7, 1, 5, 17, 31, 15, 1, 5, 27, 81, 107, 33, 1, 7, 41, 171, 397, 387, 75, 1, 7, 57, 309, 1077, 2003, 1415, 171, 1, 9, 75, 509, 2385, 6963, 10239, 5231, 391, 1, 9, 97, 779, 4643, 18841, 45523, 52697, 19477, 899, 1, 11, 121, 1133, 8211, 43293, 150523]