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.

A204213 T(n,k) = Number of length n+1 nonnegative integer arrays starting and ending with 0 with adjacent elements differing by no more than k.

Table of values

n a(n)
1 1
2 1
3 2
4 1
5 3
6 4
7 1
8 4
9 9
10 9
11 1
12 5
13 16
14 32
15 21
16 1
17 6
18 25
19 78
20 120
21 51
22 1
23 7
24 36
25 155
26 404
27 473
28 127
29 1
30 8
31 49
32 271
33 1025
34 2208
35 1925
36 323
37 1
38 9
39 64
40 434
41 2181
42 7167
43 12492
44 8034
45 835
46 1
47 10
48 81
49 652
50 4116
51 18583
52 51945
53 72589
54 34188
55 2188
56 1
57 11
58 100
59 933
60 7120
61 41363
62 164255
63 387000
64 430569
65 147787
66 5798

List of values

[1, 1, 2, 1, 3, 4, 1, 4, 9, 9, 1, 5, 16, 32, 21, 1, 6, 25, 78, 120, 51, 1, 7, 36, 155, 404, 473, 127, 1, 8, 49, 271, 1025, 2208, 1925, 323, 1, 9, 64, 434, 2181, 7167, 12492, 8034, 835, 1, 10, 81, 652, 4116, 18583, 51945, 72589, 34188, 2188, 1, 11, 100, 933, 7120, 41363, 164255, 387000, 430569, 147787, 5798]