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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.

A227810 Number of rooted identity trees with n nodes and exactly 6 subtrees from the root.

Table of values

n a(n)
20 3
21 12
22 52
23 168
24 537
25 1591
26 4605
27 12878
28 35434
29 95686
30 255451
31 674351
32 1765821
33 4589927
34 11862112
35 30500143
36 78095203
37 199230786
38 506693631
39 1285172861
40 3252142655
41 8212876975
42 20703986186
43 52112143876
44 130988626702
45 328857650246
46 824753010860
47 2066496137418

List of values

[3, 12, 52, 168, 537, 1591, 4605, 12878, 35434, 95686, 255451, 674351, 1765821, 4589927, 11862112, 30500143, 78095203, 199230786, 506693631, 1285172861, 3252142655, 8212876975, 20703986186, 52112143876, 130988626702, 328857650246, 824753010860, 2066496137418]

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

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