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.

A288972 Number A(n,k) of Dyck paths having exactly k peaks in each of the levels 1,...,n and no other peaks; square array A(n,k), n>=0, k>=0, read by antidiagonals.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 2
9 1
10 1
11 1
12 9
13 10
14 1
15 1
16 1
17 44
18 471
19 92
20 1
21 1
22 1
23 225
24 27076
25 82899
26 1348
27 1
28 1
29 1
30 1182
31 1713955
32 102695344
33 36913581
34 28808
35 1
36 1
37 1
38 6321
39 114751470
40 147556480375
41 1565018426896
42 34878248649
43 845800
44 1

List of values

[1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 9, 10, 1, 1, 1, 44, 471, 92, 1, 1, 1, 225, 27076, 82899, 1348, 1, 1, 1, 1182, 1713955, 102695344, 36913581, 28808, 1, 1, 1, 6321, 114751470, 147556480375, 1565018426896, 34878248649, 845800, 1]