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.

A114499 Triangle read by rows: number of Dyck paths of semilength n having k 3-bridges of a given shape (0<=k<=floor(n/3)). A 3-bridge is a subpath of the form UUUDDD or UUDUDD starting at level 0.

Table of values

n a(n)
0 1
1 1
2 2
3 4
4 1
5 12
6 2
7 37
8 5
9 119
10 12
11 1
12 390
13 36
14 3
15 1307
16 114
17 9
18 4460
19 376
20 25
21 1
22 15452
23 1262
24 78
25 4
26 54207
27 4310
28 255
29 14
30 192170
31 14934
32 863
33 44
34 1
35 687386
36 52397
37 2967
38 145
39 5
40 2477810
41 185780
42 10338
43 492
44 20
45 8992007
46 664631
47 36424
48 1712
49 70
50 1

List of values

[1, 1, 2, 4, 1, 12, 2, 37, 5, 119, 12, 1, 390, 36, 3, 1307, 114, 9, 4460, 376, 25, 1, 15452, 1262, 78, 4, 54207, 4310, 255, 14, 192170, 14934, 863, 44, 1, 687386, 52397, 2967, 145, 5, 2477810, 185780, 10338, 492, 20, 8992007, 664631, 36424, 1712, 70, 1]