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.

A165216 Number of reduced words of length n in Coxeter group on 9 generators S_i with relations (S_i)^2 = (S_i S_j)^9 = I.

Table of values

n a(n)
0 1
1 9
2 72
3 576
4 4608
5 36864
6 294912
7 2359296
8 18874368
9 150994908
10 1207958976
11 9663669540
12 77309338176
13 618474560256
14 4947795320832
15 39582353276928
16 316658751897600
17 2533269420638208
18 20266150608766188
19 162129166819422768

List of values

[1, 9, 72, 576, 4608, 36864, 294912, 2359296, 18874368, 150994908, 1207958976, 9663669540, 77309338176, 618474560256, 4947795320832, 39582353276928, 316658751897600, 2533269420638208, 20266150608766188, 162129166819422768]

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

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