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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.

A339646 Number of inequivalent leaf colorings of series-reduced planted trees with n leaves using at most 2 colors.

Table of values

n a(n)
1 1
2 2
3 5
4 22
5 85
6 402
7 1885
8 9453
9 48090
10 251476
11 1333517
12 7177585
13 39048327
14 214523186
15 1188037961
16 6626311639
17 37186187183
18 209826251622
19 1189699762371
20 6774803376279
21 38730124684829
22 222194778028278
23 1278828889503773
24 7381829822338301
25 42725078403203912

List of values

[1, 2, 5, 22, 85, 402, 1885, 9453, 48090, 251476, 1333517, 7177585, 39048327, 214523186, 1188037961, 6626311639, 37186187183, 209826251622, 1189699762371, 6774803376279, 38730124684829, 222194778028278, 1278828889503773, 7381829822338301, 42725078403203912]

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

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