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.

A164706 Number of reduced words of length n in Coxeter group on 5 generators S_i with relations (S_i)^2 = (S_i S_j)^8 = I.

Table of values

n a(n)
0 1
1 5
2 20
3 80
4 320
5 1280
6 5120
7 20480
8 81910
9 327600
10 1310250
11 5240400
12 20959200
13 83827200
14 335270400
15 1340928000
16 5363097690
17 21449933820
18 85789908630
19 343120332420
20 1372324139280
21 5488667867520
22 21952156999680
23 87798571269120

List of values

[1, 5, 20, 80, 320, 1280, 5120, 20480, 81910, 327600, 1310250, 5240400, 20959200, 83827200, 335270400, 1340928000, 5363097690, 21449933820, 85789908630, 343120332420, 1372324139280, 5488667867520, 21952156999680, 87798571269120]

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

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