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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.

A095830 Number of binary trees of path length n.

Table of values

n a(n)
0 1
1 2
2 1
3 4
4 4
5 2
6 14
7 8
8 12
9 28
10 21
11 52
12 52
13 72
14 92
15 160
16 212
17 178
18 446
19 360
20 628
21 920
22 918
23 1568
24 1784
25 2676
26 2960
27 4724
28 5360
29 7280
30 10876
31 10936
32 17484
33 21732
34 28469
35 34224
36 48648
37 61232
38 78196
39 105680
40 120904
41 178848
42 217404
43 279312

List of values

[1, 2, 1, 4, 4, 2, 14, 8, 12, 28, 21, 52, 52, 72, 92, 160, 212, 178, 446, 360, 628, 920, 918, 1568, 1784, 2676, 2960, 4724, 5360, 7280, 10876, 10936, 17484, 21732, 28469, 34224, 48648, 61232, 78196, 105680, 120904, 178848, 217404, 279312]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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