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.

A239888 From second moments of unfriendly seating arrangement problem around a circular table with n seats.

Table of values

n a(n)
0 0
1 0
2 0
3 8
4 48
5 464
6 4000
7 40032
8 424704
9 4927232
10 61553664
11 827632640
12 11914946560
13 183014995968
14 2988450177024
15 51709354532864
16 945292051415040
17 18207952013164544
18 368620245155184640
19 7825923453008609280
20 173870718374040305664
21 4034781267785209610240
22 97622280693411826630656
23 2458689656873584082026496
24 64361542182239808476151808

List of values

[0, 0, 0, 8, 48, 464, 4000, 40032, 424704, 4927232, 61553664, 827632640, 11914946560, 183014995968, 2988450177024, 51709354532864, 945292051415040, 18207952013164544, 368620245155184640, 7825923453008609280, 173870718374040305664, 4034781267785209610240, 97622280693411826630656, 2458689656873584082026496, 64361542182239808476151808]

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

Content is available under The OEIS End-User License Agreement.