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.

A062259 Number of (0,1)-strings of length n that avoid the substrings of substrings 11101011 and 101111.

Table of values

n a(n)
0 1
1 2
2 4
3 8
4 16
5 32
6 63
7 124
8 243
9 476
10 933
11 1830
12 3590
13 7043
14 13818
15 27110
16 53186
17 104342
18 204701
19 401588
20 787846
21 1545619
22 3032243
23 5948749
24 11670441
25 22895434
26 44916973
27 88119508
28 172875575
29 339152648
30 665360153
31 1305324126
32 2560825244

List of values

[1, 2, 4, 8, 16, 32, 63, 124, 243, 476, 933, 1830, 3590, 7043, 13818, 27110, 53186, 104342, 204701, 401588, 787846, 1545619, 3032243, 5948749, 11670441, 22895434, 44916973, 88119508, 172875575, 339152648, 665360153, 1305324126, 2560825244]