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.

A166557 Number of reduced words of length n in Coxeter group on 12 generators S_i with relations (S_i)^2 = (S_i S_j)^12 = I.

Table of values

n a(n)
0 1
1 12
2 132
3 1452
4 15972
5 175692
6 1932612
7 21258732
8 233846052
9 2572306572
10 28295372292
11 311249095212
12 3423740047266
13 37661140519200
14 414272545703280
15 4556998002648960
16 50126978028180240
17 551396758299441120
18 6065364341177895600
19 66719007751681327680

List of values

[1, 12, 132, 1452, 15972, 175692, 1932612, 21258732, 233846052, 2572306572, 28295372292, 311249095212, 3423740047266, 37661140519200, 414272545703280, 4556998002648960, 50126978028180240, 551396758299441120, 6065364341177895600, 66719007751681327680]

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

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