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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.

A381936 Number of primitive binary words of length n that avoid 11, start with 1 and end with 0.

Table of values

n a(n)
1 0
2 1
3 1
4 1
5 3
6 3
7 8
8 11
9 20
10 30
11 55
12 83
13 144
14 224
15 373
16 597
17 987
18 1572
19 2584
20 4146
21 6756
22 10890
23 17711
24 28557
25 46365
26 74880
27 121372
28 196184
29 317811
30 513818
31 832040
32 1345659
33 2178253
34 3523590
35 5702876
36 9225784
37 14930352
38 24155232
39 39088024
40 63241794
41 102334155
42 165573148
43 267914296

List of values

[0, 1, 1, 1, 3, 3, 8, 11, 20, 30, 55, 83, 144, 224, 373, 597, 987, 1572, 2584, 4146, 6756, 10890, 17711, 28557, 46365, 74880, 121372, 196184, 317811, 513818, 832040, 1345659, 2178253, 3523590, 5702876, 9225784, 14930352, 24155232, 39088024, 63241794, 102334155, 165573148, 267914296]

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

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