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.

A191320 Triangle read by rows: T(n,k) is the number of dispersed Dyck paths of length n (i.e., Motzkin paths of length n with no (1,0) steps at positive heights) with k HUs, where U=(1,1) and H=(1,0).

Table of values

n a(n)
0 1
1 1
2 2
3 2
4 1
5 4
6 2
7 4
8 6
9 9
10 10
11 1
12 9
13 23
14 3
15 23
16 36
17 11
18 23
19 77
20 25
21 1
22 65
23 118
24 65
25 4
26 65
27 249
28 131
29 17
30 197
31 380
32 298
33 48
34 1
35 197
36 808
37 566
38 140
39 5
40 626
41 1236
42 1210
43 336
44 24
45 626
46 2665
47 2230
48 833
49 80
50 1
51 2056
52 4094
53 4627
54 1828
55 259
56 6
57 2056
58 8955
59 8401
60 4155
61 711
62 32
63 6918
64 13816
65 17192
66 8648
67 1923
68 122
69 1

List of values

[1, 1, 2, 2, 1, 4, 2, 4, 6, 9, 10, 1, 9, 23, 3, 23, 36, 11, 23, 77, 25, 1, 65, 118, 65, 4, 65, 249, 131, 17, 197, 380, 298, 48, 1, 197, 808, 566, 140, 5, 626, 1236, 1210, 336, 24, 626, 2665, 2230, 833, 80, 1, 2056, 4094, 4627, 1828, 259, 6, 2056, 8955, 8401, 4155, 711, 32, 6918, 13816, 17192, 8648, 1923, 122, 1]