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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.

A297185 One-half of the number of closed binary words of length n that are not privileged.

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 1
5 2
6 6
7 10
8 21
9 38
10 72
11 128
12 244
13 446
14 836
15 1546
16 2899
17 5428
18 10256
19 19326
20 36672
21 69606
22 132656
23 253232
24 484776
25 929392
26 1785684
27 3435846
28 6622020
29 12779444
30 24696034
31 47777780
32 92537529
33 179406010
34 348154156
35 676210084
36 1314474934

List of values

[0, 0, 0, 0, 1, 2, 6, 10, 21, 38, 72, 128, 244, 446, 836, 1546, 2899, 5428, 10256, 19326, 36672, 69606, 132656, 253232, 484776, 929392, 1785684, 3435846, 6622020, 12779444, 24696034, 47777780, 92537529, 179406010, 348154156, 676210084, 1314474934]

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

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