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.

A351360 Number of binary necklaces with n beads and at least three consecutive black beads.

Table of values

n a(n)
1 0
2 0
3 1
4 2
5 3
6 5
7 9
8 17
9 31
10 60
11 113
12 220
13 419
14 813
15 1565
16 3033
17 5855
18 11358
19 21977
20 42644
21 82675
22 160517
23 311609
24 605551
25 1176871
26 2288964
27 4453237
28 8669002
29 16881859
30 32892459
31 64112225
32 125022545
33 243898335
34 476011102
35 929387453
36 1815322932

List of values

[0, 0, 1, 2, 3, 5, 9, 17, 31, 60, 113, 220, 419, 813, 1565, 3033, 5855, 11358, 21977, 42644, 82675, 160517, 311609, 605551, 1176871, 2288964, 4453237, 8669002, 16881859, 32892459, 64112225, 125022545, 243898335, 476011102, 929387453, 1815322932]

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

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