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.

A162755 Number of reduced words of length n in Coxeter group on 9 generators S_i with relations (S_i)^2 = (S_i S_j)^3 = I.

Table of values

n a(n)
0 1
1 9
2 72
3 540
4 4032
5 29988
6 223020
7 1658160
8 12328596
9 91662732
10 681510816
11 5067014148
12 37673118252
13 280098623952
14 2082525799284
15 15483523651596
16 115119584685504
17 855911035979748
18 6363675682412076
19 47313758657548656
20 351776531372292180
21 2615449111101347724
22 19445794254904116960

List of values

[1, 9, 72, 540, 4032, 29988, 223020, 1658160, 12328596, 91662732, 681510816, 5067014148, 37673118252, 280098623952, 2082525799284, 15483523651596, 115119584685504, 855911035979748, 6363675682412076, 47313758657548656, 351776531372292180, 2615449111101347724, 19445794254904116960]

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

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