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.

A371682 Number of binary strings of length n with more 001 than 000 substrings.

Table of values

n a(n)
0 0
1 0
2 0
3 1
4 3
5 8
6 18
7 41
8 89
9 191
10 400
11 833
12 1717
13 3523
14 7184
15 14604
16 29588
17 59822
18 120695
19 243166
20 489271
21 983530
22 1975416
23 3965078
24 7954340
25 15950301
26 31972219
27 64069007
28 128355352
29 257093509
30 514864480
31 1030937876
32 2064045150
33 4132012413
34 8271156673

List of values

[0, 0, 0, 1, 3, 8, 18, 41, 89, 191, 400, 833, 1717, 3523, 7184, 14604, 29588, 59822, 120695, 243166, 489271, 983530, 1975416, 3965078, 7954340, 15950301, 31972219, 64069007, 128355352, 257093509, 514864480, 1030937876, 2064045150, 4132012413, 8271156673]