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.

A164413 Number of binary strings of length n with no substrings equal to 0000, 0001 or 1001.

Table of values

n a(n)
0 1
1 2
2 4
3 8
4 13
5 22
6 36
7 58
8 94
9 152
10 246
11 398
12 644
13 1042
14 1686
15 2728
16 4414
17 7142
18 11556
19 18698
20 30254
21 48952
22 79206
23 128158
24 207364
25 335522
26 542886
27 878408
28 1421294
29 2299702
30 3720996
31 6020698
32 9741694
33 15762392
34 25504086
35 41266478
36 66770564
37 108037042

List of values

[1, 2, 4, 8, 13, 22, 36, 58, 94, 152, 246, 398, 644, 1042, 1686, 2728, 4414, 7142, 11556, 18698, 30254, 48952, 79206, 128158, 207364, 335522, 542886, 878408, 1421294, 2299702, 3720996, 6020698, 9741694, 15762392, 25504086, 41266478, 66770564, 108037042]