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.

A209035 Number of 7-bead necklaces labeled with numbers -n..n allowing reversal, with sum zero and first differences in -n..n.

Table of values

n a(n)
1 6
2 86
3 576
4 2517
5 8235
6 22249
7 52208
8 110285
9 214440
10 390344
11 672932
12 1108883
13 1758433
14 2698447
15 4024458
16 5854361
17 8330650
18 11624758
19 15939472
20 21513945
21 28626249
22 37599103
23 48802532
24 62660333
25 79652814
26 100324030
27 125284570

List of values

[6, 86, 576, 2517, 8235, 22249, 52208, 110285, 214440, 390344, 672932, 1108883, 1758433, 2698447, 4024458, 5854361, 8330650, 11624758, 15939472, 21513945, 28626249, 37599103, 48802532, 62660333, 79652814, 100324030, 125284570]