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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.

A286304 Number of connected induced (non-null) subgraphs of the complete binary tree with n nodes.

Table of values

n a(n)
1 1
2 3
3 6
4 10
5 17
6 24
7 37
8 51
9 78
10 110
11 173
12 229
13 340
14 477
15 750
16 1024
17 1571
18 2253
19 3616
20 5024
21 7839
22 11356
23 18389
24 25173
25 38740
26 55697
27 89610
28 124870
29 195389
30 283536
31 459829
32 636123
33 988710
34 1429442
35 2310905
36 3227617
37 5061040
38 7352817
39 11936370
40 16526444

List of values

[1, 3, 6, 10, 17, 24, 37, 51, 78, 110, 173, 229, 340, 477, 750, 1024, 1571, 2253, 3616, 5024, 7839, 11356, 18389, 25173, 38740, 55697, 89610, 124870, 195389, 283536, 459829, 636123, 988710, 1429442, 2310905, 3227617, 5061040, 7352817, 11936370, 16526444]

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

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