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.

A167106 Number of reduced words of length n in Coxeter group on 5 generators S_i with relations (S_i)^2 = (S_i S_j)^14 = I.

Table of values

n a(n)
0 1
1 5
2 20
3 80
4 320
5 1280
6 5120
7 20480
8 81920
9 327680
10 1310720
11 5242880
12 20971520
13 83886080
14 335544310
15 1342177200
16 5368708650
17 21474834000
18 85899333600
19 343597324800
20 1374389260800
21 5497556889600
22 21990226944000
23 87960905318400

List of values

[1, 5, 20, 80, 320, 1280, 5120, 20480, 81920, 327680, 1310720, 5242880, 20971520, 83886080, 335544310, 1342177200, 5368708650, 21474834000, 85899333600, 343597324800, 1374389260800, 5497556889600, 21990226944000, 87960905318400]

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

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