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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.

A055335 Number of asymmetric (identity) trees with n nodes and 4 leaves.

Table of values

n a(n)
9 1
10 3
11 8
12 14
13 25
14 40
15 62
16 89
17 127
18 173
19 233
20 304
21 393
22 497
23 624
24 769
25 942
26 1139
27 1369
28 1627
29 1925
30 2257
31 2635
32 3053
33 3524
34 4042
35 4621
36 5253
37 5954
38 6717
39 7557
40 8466
41 9462
42 10536
43 11706
44 12963
45 14326
46 15786
47 17363
48 19046
49 20857
50 22786
51 24854

List of values

[1, 3, 8, 14, 25, 40, 62, 89, 127, 173, 233, 304, 393, 497, 624, 769, 942, 1139, 1369, 1627, 1925, 2257, 2635, 3053, 3524, 4042, 4621, 5253, 5954, 6717, 7557, 8466, 9462, 10536, 11706, 12963, 14326, 15786, 17363, 19046, 20857, 22786, 24854]

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

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