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.

A323866 Number of aperiodic toroidal necklaces of positive integers summing to n.

Table of values

n a(n)
0 1
1 1
2 1
3 3
4 5
5 12
6 18
7 42
8 72
9 145
10 262
11 522
12 960
13 1879
14 3531
15 6831
16 13013
17 25148
18 48177
19 93186
20 179507
21 347509
22 671955
23 1303257
24 2527162
25 4910681
26 9545176
27 18579471
28 36183505
29 70540861
30 137603801
31 268655547
32 524842088
33 1026067205
34 2007118657
35 3928564113

List of values

[1, 1, 1, 3, 5, 12, 18, 42, 72, 145, 262, 522, 960, 1879, 3531, 6831, 13013, 25148, 48177, 93186, 179507, 347509, 671955, 1303257, 2527162, 4910681, 9545176, 18579471, 36183505, 70540861, 137603801, 268655547, 524842088, 1026067205, 2007118657, 3928564113]