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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.

A164666 Number of reduced words of length n in Coxeter group on 30 generators S_i with relations (S_i)^2 = (S_i S_j)^7 = I.

Table of values

n a(n)
0 1
1 30
2 870
3 25230
4 731670
5 21218430
6 615334470
7 17844699195
8 517496264040
9 15007391291760
10 435214336864440
11 12621215461767360
12 366015239479512840
13 10614441686465394960
14 307818801412722798030
15 8926745023620530422680

List of values

[1, 30, 870, 25230, 731670, 21218430, 615334470, 17844699195, 517496264040, 15007391291760, 435214336864440, 12621215461767360, 366015239479512840, 10614441686465394960, 307818801412722798030, 8926745023620530422680]

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

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