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.

A191306 Triangle read by rows: T(n,k) is the number of dispersed Dyck paths (i.e., Motzkin paths with no (1,0) steps at positive heights) of length n having height of first peak equal to k.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 2
6 1
7 4
8 1
9 1
10 7
11 2
12 1
13 13
14 5
15 1
16 1
17 23
18 9
19 2
20 1
21 43
22 19
23 6
24 1
25 1
26 78
27 34
28 11
29 2
30 1
31 148
32 69
33 26
34 7
35 1
36 1
37 274
38 125
39 47
40 13
41 2
42 1
43 526
44 251
45 103
46 34
47 8
48 1
49 1
50 988
51 461
52 187
53 62
54 15
55 2
56 1
57 1912
58 923
59 397
60 146
61 43
62 9
63 1
64 1
65 3628
66 1715
67 727
68 266
69 79
70 17
71 2
72 1
73 7060
74 3431
75 1519
76 596
77 199
78 53
79 10
80 1

List of values

[1, 1, 1, 1, 1, 2, 1, 4, 1, 1, 7, 2, 1, 13, 5, 1, 1, 23, 9, 2, 1, 43, 19, 6, 1, 1, 78, 34, 11, 2, 1, 148, 69, 26, 7, 1, 1, 274, 125, 47, 13, 2, 1, 526, 251, 103, 34, 8, 1, 1, 988, 461, 187, 62, 15, 2, 1, 1912, 923, 397, 146, 43, 9, 1, 1, 3628, 1715, 727, 266, 79, 17, 2, 1, 7060, 3431, 1519, 596, 199, 53, 10, 1]