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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.

A298537 Number of unlabeled rooted trees with n nodes such that every branch of the root has the same number of nodes.

Table of values

n a(n)
1 1
2 1
3 2
4 3
5 6
6 10
7 25
8 49
9 127
10 291
11 766
12 1843
13 5003
14 12487
15 34151
16 87983
17 242088
18 634848
19 1763749
20 4688677
21 13085621
22 35241441
23 98752586
24 268282856
25 755353825
26 2067175933
27 5837592853
28 16087674276
29 45550942142
30 126186554309
31 358344530763
32 997171512999

List of values

[1, 1, 2, 3, 6, 10, 25, 49, 127, 291, 766, 1843, 5003, 12487, 34151, 87983, 242088, 634848, 1763749, 4688677, 13085621, 35241441, 98752586, 268282856, 755353825, 2067175933, 5837592853, 16087674276, 45550942142, 126186554309, 358344530763, 997171512999]

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

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