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.

A191384 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 ascents of length 1. An ascent is a maximal sequence of consecutive (1,1)-steps.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 2
6 2
7 3
8 1
9 3
10 4
11 3
12 5
13 8
14 6
15 1
16 7
17 14
18 10
19 4
20 12
21 26
22 21
23 10
24 1
25 18
26 42
27 41
28 20
29 5
30 31
31 77
32 83
33 45
34 15
35 1
36 47
37 128
38 150
39 96
40 35
41 6
42 81
43 234
44 293
45 209
46 85
47 21
48 1
49 125
50 388
51 530
52 414
53 196
54 56
55 7
56 216
57 704
58 1023
59 858
60 455
61 147
62 28
63 1
64 337
65 1172
66 1828
67 1668
68 974
69 364
70 84
71 8
72 583
73 2119
74 3479
75 3385
76 2133
77 896
78 238
79 36
80 1

List of values

[1, 1, 1, 1, 1, 2, 2, 3, 1, 3, 4, 3, 5, 8, 6, 1, 7, 14, 10, 4, 12, 26, 21, 10, 1, 18, 42, 41, 20, 5, 31, 77, 83, 45, 15, 1, 47, 128, 150, 96, 35, 6, 81, 234, 293, 209, 85, 21, 1, 125, 388, 530, 414, 196, 56, 7, 216, 704, 1023, 858, 455, 147, 28, 1, 337, 1172, 1828, 1668, 974, 364, 84, 8, 583, 2119, 3479, 3385, 2133, 896, 238, 36, 1]