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.

A061417 Number of permutations up to cyclic rotations; permutation siteswap necklaces.

Table of values

n a(n)
1 1
2 2
3 4
4 10
5 28
6 136
7 726
8 5100
9 40362
10 363288
11 3628810
12 39921044
13 479001612
14 6227066928
15 87178295296
16 1307675013928
17 20922789888016
18 355687438476444
19 6402373705728018
20 121645100594641896
21 2432902008177690360
22 51090942175425331320
23 1124000727777607680022

List of values

[1, 2, 4, 10, 28, 136, 726, 5100, 40362, 363288, 3628810, 39921044, 479001612, 6227066928, 87178295296, 1307675013928, 20922789888016, 355687438476444, 6402373705728018, 121645100594641896, 2432902008177690360, 51090942175425331320, 1124000727777607680022]

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

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