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.

A057122 The binary encoding (as a rooted planar tree) of each rooted planar binary tree. See A057123 for illustration.

Table of values

n a(n)
0 0
1 10
2 180
3 210
4 2920
5 2980
6 3380
7 3490
8 3730
9 46800
10 46920
11 47720
12 47940
13 48420
14 54120
15 54180
16 55860
17 56130
18 56610
19 59700
20 59810
21 60690
22 62610
23 748960
24 749200
25 750800
26 751240
27 752200
28 763600
29 763720
30 767080
31 767620
32 768580
33 774760
34 774980

List of values

[0, 10, 180, 210, 2920, 2980, 3380, 3490, 3730, 46800, 46920, 47720, 47940, 48420, 54120, 54180, 55860, 56130, 56610, 59700, 59810, 60690, 62610, 748960, 749200, 750800, 751240, 752200, 763600, 763720, 767080, 767620, 768580, 774760, 774980]