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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.

A165515 Number of reduced words of length n in Coxeter group on 30 generators S_i with relations (S_i)^2 = (S_i S_j)^9 = I.

Table of values

n a(n)
0 1
1 30
2 870
3 25230
4 731670
5 21218430
6 615334470
7 17844699630
8 517496289270
9 15007392388395
10 435214379250840
11 12621216997908960
12 366015292928763240
13 10614443494626832560
14 307818861335266403640
15 8926746978464285228160

List of values

[1, 30, 870, 25230, 731670, 21218430, 615334470, 17844699630, 517496289270, 15007392388395, 435214379250840, 12621216997908960, 366015292928763240, 10614443494626832560, 307818861335266403640, 8926746978464285228160]

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

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