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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.

A201160 Irregular triangle read by rows: number of Motzkin paths of length n and rank k.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 2
6 1
7 1
8 1
9 3
10 3
11 1
12 1
13 2
14 3
15 4
16 6
17 4
18 1
19 1
20 1
21 3
22 5
23 7
24 8
25 10
26 10
27 5
28 1
29 1
30 2
31 3
32 6
33 8
34 12
35 16
36 18
37 19
38 20
39 15
40 6
41 1

List of values

[1, 1, 1, 1, 1, 2, 1, 1, 1, 3, 3, 1, 1, 2, 3, 4, 6, 4, 1, 1, 1, 3, 5, 7, 8, 10, 10, 5, 1, 1, 2, 3, 6, 8, 12, 16, 18, 19, 20, 15, 6, 1]