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.

A166518 Number of reduced words of length n in Coxeter group on 7 generators S_i with relations (S_i)^2 = (S_i S_j)^12 = I.

Table of values

n a(n)
0 1
1 7
2 42
3 252
4 1512
5 9072
6 54432
7 326592
8 1959552
9 11757312
10 70543872
11 423263232
12 2539579371
13 15237476100
14 91424855865
15 548549130780
16 3291294758220
17 19747768390560
18 118486609390800
19 710919650629440
20 4265517869484480

List of values

[1, 7, 42, 252, 1512, 9072, 54432, 326592, 1959552, 11757312, 70543872, 423263232, 2539579371, 15237476100, 91424855865, 548549130780, 3291294758220, 19747768390560, 118486609390800, 710919650629440, 4265517869484480]

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

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