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.

A064191 Triangle T(n,k) (n >= 0, 0 <= k <= n) generalizing Motzkin numbers.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 1
5 1
6 4
7 2
8 2
9 1
10 9
11 4
12 5
13 2
14 1
15 21
16 9
17 12
18 5
19 3
20 1
21 51
22 21
23 30
24 12
25 9
26 3
27 1
28 127
29 51
30 76
31 30
32 25
33 9
34 4
35 1
36 323
37 127
38 196
39 76
40 69
41 25
42 14
43 4
44 1
45 835
46 323
47 512
48 196
49 189
50 69
51 44
52 14
53 5
54 1
55 2188
56 835
57 1353
58 512
59 518
60 189
61 133
62 44
63 20
64 5
65 1
66 5798
67 2188
68 3610
69 1353

List of values

[1, 1, 1, 2, 1, 1, 4, 2, 2, 1, 9, 4, 5, 2, 1, 21, 9, 12, 5, 3, 1, 51, 21, 30, 12, 9, 3, 1, 127, 51, 76, 30, 25, 9, 4, 1, 323, 127, 196, 76, 69, 25, 14, 4, 1, 835, 323, 512, 196, 189, 69, 44, 14, 5, 1, 2188, 835, 1353, 512, 518, 189, 133, 44, 20, 5, 1, 5798, 2188, 3610, 1353]