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.

A215067 Number of Motzkin n-paths avoiding odd-numbered steps that are up steps.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 3
5 6
6 10
7 21
8 37
9 80
10 146
11 322
12 602
13 1347
14 2563
15 5798
16 11181
17 25512
18 49720
19 114236
20 224540
21 518848
22 1027038
23 2384538
24 4748042
25 11068567
26 22150519
27 51817118
28 104146733
29 244370806
30 493012682
31 1159883685
32 2347796965
33 5536508864
34 11239697816
35 26560581688
36 54061835288

List of values

[1, 1, 1, 2, 3, 6, 10, 21, 37, 80, 146, 322, 602, 1347, 2563, 5798, 11181, 25512, 49720, 114236, 224540, 518848, 1027038, 2384538, 4748042, 11068567, 22150519, 51817118, 104146733, 244370806, 493012682, 1159883685, 2347796965, 5536508864, 11239697816, 26560581688, 54061835288]