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.

A163969 Number of reduced words of length n in Coxeter group on 20 generators S_i with relations (S_i)^2 = (S_i S_j)^6 = I.

Table of values

n a(n)
0 1
1 20
2 380
3 7220
4 137180
5 2606420
6 49521790
7 940910400
8 17877229200
9 339666055200
10 6453630356400
11 122618507616000
12 2329742730783510
13 44264942521047180
14 841030689999256020
15 15979521970107624780

List of values

[1, 20, 380, 7220, 137180, 2606420, 49521790, 940910400, 17877229200, 339666055200, 6453630356400, 122618507616000, 2329742730783510, 44264942521047180, 841030689999256020, 15979521970107624780]

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

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