cp's OEIS Frontend

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.

A164408 Number of binary strings of length n with no substrings equal to 0000 0001 or 0011.

Table of values

n a(n)
0 1
1 2
2 4
3 8
4 13
5 23
6 40
7 68
8 118
9 203
10 349
11 602
12 1036
13 1784
14 3073
15 5291
16 9112
17 15692
18 27022
19 46535
20 80137
21 138002
22 237652
23 409256
24 704773
25 1213679
26 2090056
27 3599252
28 6198214
29 10673843
30 18381253
31 31654058
32 54510940
33 93872408
34 161656153
35 278385443
36 479403064

List of values

[1, 2, 4, 8, 13, 23, 40, 68, 118, 203, 349, 602, 1036, 1784, 3073, 5291, 9112, 15692, 27022, 46535, 80137, 138002, 237652, 409256, 704773, 1213679, 2090056, 3599252, 6198214, 10673843, 18381253, 31654058, 54510940, 93872408, 161656153, 278385443, 479403064]

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

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