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.

A366044 Number of circular binary sequences of length n with an even number of 0's and no three consecutive 1's.

Table of values

n a(n)
1 0
2 1
3 3
4 7
5 10
6 19
7 35
8 67
9 120
10 221
11 407
12 751
13 1378
14 2535
15 4663
16 8579
17 15776
18 29017
19 53371
20 98167
21 180554
22 332091
23 610811
24 1123459
25 2066360
26 3800629
27 6990447
28 12857439
29 23648514
30 43496399
31 80002351
32 147147267
33 270646016
34 497795633
35 915588915
36 1684030567
37 3097415114
38 5697034595
39 10478480275

List of values

[0, 1, 3, 7, 10, 19, 35, 67, 120, 221, 407, 751, 1378, 2535, 4663, 8579, 15776, 29017, 53371, 98167, 180554, 332091, 610811, 1123459, 2066360, 3800629, 6990447, 12857439, 23648514, 43496399, 80002351, 147147267, 270646016, 497795633, 915588915, 1684030567, 3097415114, 5697034595, 10478480275]

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

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