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.

A111301 Triangle read by rows: T(n,k) is the number of Dyck n-paths containing k even-length descents to ground level.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 2
5 3
6 5
7 8
8 1
9 14
10 23
11 5
12 42
13 70
14 19
15 1
16 132
17 222
18 68
19 7
20 429
21 726
22 240
23 34
24 1
25 1430
26 2431
27 847
28 145
29 9
30 4862
31 8294
32 3003
33 583
34 53
35 1
36 16796
37 28730
38 10712
39 2275
40 262
41 11
42 58786
43 100776
44 38454
45 8736
46 1183
47 76
48 1
49 208012
50 357238
51 138890
52 33252
53 5068

List of values

[1, 1, 1, 1, 2, 3, 5, 8, 1, 14, 23, 5, 42, 70, 19, 1, 132, 222, 68, 7, 429, 726, 240, 34, 1, 1430, 2431, 847, 145, 9, 4862, 8294, 3003, 583, 53, 1, 16796, 28730, 10712, 2275, 262, 11, 58786, 100776, 38454, 8736, 1183, 76, 1, 208012, 357238, 138890, 33252, 5068]