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.

A121773 Number of n-bead necklaces with n+1 colors for n>0, with a(0)=1.

Table of values

n a(n)
0 1
1 2
2 6
3 24
4 165
5 1560
6 19684
7 299600
8 5381685
9 111111340
10 2593758618
11 67546215528
12 1941507500933
13 61054982558024
14 2085209014017960
15 76861433640597376
16 3041324492665174641
17 128583032925805678368
18 5784852794346334629910
19 275941052631578947368440

List of values

[1, 2, 6, 24, 165, 1560, 19684, 299600, 5381685, 111111340, 2593758618, 67546215528, 1941507500933, 61054982558024, 2085209014017960, 76861433640597376, 3041324492665174641, 128583032925805678368, 5784852794346334629910, 275941052631578947368440]

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

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