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.

A162744 Number of reduced words of length n in Coxeter group on 7 generators S_i with relations (S_i)^2 = (S_i S_j)^3 = I.

Table of values

n a(n)
0 1
1 7
2 42
3 231
4 1260
5 6825
6 36960
7 200025
8 1082550
9 5858475
10 31704750
11 171577875
12 928536000
13 5024998125
14 27194002500
15 147166963125
16 796429856250
17 4310074059375
18 23325015131250
19 126228998109375
20 683118955312500

List of values

[1, 7, 42, 231, 1260, 6825, 36960, 200025, 1082550, 5858475, 31704750, 171577875, 928536000, 5024998125, 27194002500, 147166963125, 796429856250, 4310074059375, 23325015131250, 126228998109375, 683118955312500]

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

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