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.

A101281 Triangle read by rows: T(n,k) is the number of Schroeder paths of length 2n and having k low humps.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 3
5 1
6 8
7 8
8 5
9 1
10 36
11 28
12 18
13 7
14 1
15 164
16 120
17 68
18 32
19 9
20 1
21 764
22 552
23 292
24 136
25 50
26 11
27 1
28 3652
29 2616
30 1356
31 608
32 240
33 72
34 13
35 1
36 17852
37 12680
38 6532
39 2880
40 1140
41 388
42 98
43 15
44 1
45 88868
46 62664
47 32156
48 14128
49 5572
50 1976
51 588
52 128
53 17
54 1
55 449004
56 314744

List of values

[1, 1, 1, 2, 3, 1, 8, 8, 5, 1, 36, 28, 18, 7, 1, 164, 120, 68, 32, 9, 1, 764, 552, 292, 136, 50, 11, 1, 3652, 2616, 1356, 608, 240, 72, 13, 1, 17852, 12680, 6532, 2880, 1140, 388, 98, 15, 1, 88868, 62664, 32156, 14128, 5572, 1976, 588, 128, 17, 1, 449004, 314744]