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.

A335919 Number T(n,k) of binary search trees of height k having n internal nodes; triangle T(n,k), n>=0, max(0,floor(log_2(n))+1)<=k<=n, read by rows.

Table of values

n a(n)
0 1
1 1
2 2
3 1
4 4
5 6
6 8
7 6
8 20
9 16
10 4
11 40
12 56
13 32
14 1
15 68
16 152
17 144
18 64
19 94
20 376
21 480
22 352
23 128
24 114
25 844
26 1440
27 1376
28 832
29 256
30 116
31 1744
32 4056
33 4736
34 3712
35 1920
36 512
37 94
38 3340
39 10856
40 15248
41 14272
42 9600
43 4352
44 1024
45 60
46 5976
47 27672
48 47104
49 50784
50 40576
51 24064

List of values

[1, 1, 2, 1, 4, 6, 8, 6, 20, 16, 4, 40, 56, 32, 1, 68, 152, 144, 64, 94, 376, 480, 352, 128, 114, 844, 1440, 1376, 832, 256, 116, 1744, 4056, 4736, 3712, 1920, 512, 94, 3340, 10856, 15248, 14272, 9600, 4352, 1024, 60, 5976, 27672, 47104, 50784, 40576, 24064]