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.

A328597 Number of necklace compositions of n where every pair of adjacent parts (including the last with the first) is relatively prime.

Table of values

n a(n)
1 1
2 1
3 2
4 3
5 5
6 8
7 12
8 21
9 33
10 57
11 94
12 167
13 279
14 491
15 852
16 1507
17 2647
18 4714
19 8349
20 14923
21 26642
22 47793
23 85778
24 154474
25 278322
26 502715
27 908912
28 1646205
29 2984546
30 5418652
31 9847189
32 17916000
33 32625617
34 59470539
35 108493149
36 198094482
37 361965238
38 661891579
39 1211162270

List of values

[1, 1, 2, 3, 5, 8, 12, 21, 33, 57, 94, 167, 279, 491, 852, 1507, 2647, 4714, 8349, 14923, 26642, 47793, 85778, 154474, 278322, 502715, 908912, 1646205, 2984546, 5418652, 9847189, 17916000, 32625617, 59470539, 108493149, 198094482, 361965238, 661891579, 1211162270]