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.

A165787 Number of reduced words of length n in Coxeter group on 9 generators S_i with relations (S_i)^2 = (S_i S_j)^10 = 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 150994944
10 1207959516
11 9663675840
12 77309404452
13 618475217472
14 4947801594624
15 39582411595776
16 316659283476480
17 2533274193494016
18 20266192953409536
19 162129538870935552

List of values

[1, 9, 72, 576, 4608, 36864, 294912, 2359296, 18874368, 150994944, 1207959516, 9663675840, 77309404452, 618475217472, 4947801594624, 39582411595776, 316659283476480, 2533274193494016, 20266192953409536, 162129538870935552]

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

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