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.

A318945 Triangle read by rows: T(n,k) (n>=2, 0 <= k <= n-2) = number of Dyck paths with k valleys of altitude k.

Table of values

n a(n)
2 1
3 4
4 1
5 13
6 5
7 1
8 39
9 19
10 6
11 1
12 112
13 64
14 26
15 7
16 1
17 313
18 201
19 97
20 34
21 8
22 1
23 859
24 603
25 331
26 139
27 43
28 9
29 1
30 2328
31 1752
32 1064
33 512
34 191
35 53
36 10
37 1

List of values

[1, 4, 1, 13, 5, 1, 39, 19, 6, 1, 112, 64, 26, 7, 1, 313, 201, 97, 34, 8, 1, 859, 603, 331, 139, 43, 9, 1, 2328, 1752, 1064, 512, 191, 53, 10, 1]