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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.

A210735 Number of Dyck n-paths all of whose ascents and descents have prime lengths.

Table of values

n a(n)
0 1
1 0
2 1
3 1
4 1
5 4
6 2
7 10
8 10
9 22
10 46
11 64
12 167
13 245
14 560
15 1035
16 1978
17 4210
18 7715
19 16497
20 31929
21 65216
22 133295
23 266244
24 553750
25 1116404
26 2308931
27 4738660
28 9742795
29 20204902
30 41622910
31 86539105
32 179358694
33 373018581
34 777157221
35 1618773690
36 3382590684
37 7065505631

List of values

[1, 0, 1, 1, 1, 4, 2, 10, 10, 22, 46, 64, 167, 245, 560, 1035, 1978, 4210, 7715, 16497, 31929, 65216, 133295, 266244, 553750, 1116404, 2308931, 4738660, 9742795, 20204902, 41622910, 86539105, 179358694, 373018581, 777157221, 1618773690, 3382590684, 7065505631]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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