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.

A288325 Number of Dyck paths of semilength n such that each positive level has exactly nine peaks.

Table of values

n a(n)
0 1
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 1
10 0
11 0
12 0
13 0
14 0
15 0
16 0
17 0
18 0
19 10
20 440
21 6160
22 40040
23 140140
24 280280
25 320320
26 194480
27 48620
28 0
29 100
30 9350
31 382800
32 9083800
33 142638320
34 1602400800
35 13556342800
36 89523519800
37 473679520600
38 2047398407340
39 7334909697400
40 22016582387800

List of values

[1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 440, 6160, 40040, 140140, 280280, 320320, 194480, 48620, 0, 100, 9350, 382800, 9083800, 142638320, 1602400800, 13556342800, 89523519800, 473679520600, 2047398407340, 7334909697400, 22016582387800]