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.

A114486 Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n having k UUDD's starting at level 0; here U=(1,1), D=(1,-1) (0<=k<=floor(n/2)).

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 3
5 2
6 10
7 3
8 1
9 31
10 8
11 3
12 98
13 27
14 6
15 1
16 321
17 88
18 16
19 4
20 1078
21 287
22 54
23 10
24 1
25 3686
26 960
27 183
28 28
29 5
30 12789
31 3280
32 616
33 95
34 15
35 1
36 44919
37 11378
38 2106
39 332
40 45
41 6
42 159407
43 39953
44 7323
45 1152
46 155
47 21
48 1
49 570704
50 141752
51 25785
52 4028
53 556
54 68
55 7
56 2058817

List of values

[1, 1, 1, 1, 3, 2, 10, 3, 1, 31, 8, 3, 98, 27, 6, 1, 321, 88, 16, 4, 1078, 287, 54, 10, 1, 3686, 960, 183, 28, 5, 12789, 3280, 616, 95, 15, 1, 44919, 11378, 2106, 332, 45, 6, 159407, 39953, 7323, 1152, 155, 21, 1, 570704, 141752, 25785, 4028, 556, 68, 7, 2058817]