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.

A101895 Triangle read by rows: T(n,k) is the number of Schroeder paths of length 2n and having k peaks at even height.

Table of values

n a(n)
1 2
2 5
3 1
4 15
5 6
6 1
7 51
8 30
9 8
10 1
11 188
12 144
13 51
14 10
15 1
16 731
17 685
18 300
19 77
20 12
21 1
22 2950
23 3258
24 1695
25 532
26 108
27 14
28 1
29 12235
30 15533
31 9348
32 3455
33 854
34 144
35 16
36 1
37 51822
38 74280
39 50729
40 21538
41 6245
42 1280
43 185
44 18
45 1
46 223191
47 356283
48 272128
49 130375
50 43278
51 10387
52 1824

List of values

[2, 5, 1, 15, 6, 1, 51, 30, 8, 1, 188, 144, 51, 10, 1, 731, 685, 300, 77, 12, 1, 2950, 3258, 1695, 532, 108, 14, 1, 12235, 15533, 9348, 3455, 854, 144, 16, 1, 51822, 74280, 50729, 21538, 6245, 1280, 185, 18, 1, 223191, 356283, 272128, 130375, 43278, 10387, 1824]