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.

A197130 Sum of reflection (or absolute) lengths of all elements in the Coxeter group of type B_n.

Table of values

n a(n)
1 1
2 10
3 100
4 1136
5 14816
6 220032
7 3679488
8 68548608
9 1409347584
10 31717048320
11 775808778240
12 20499651624960
13 582040706088960
14 17674457139118080
15 571655258741145600
16 19621314364126003200
17 712374154997583052800
18 27277192770051951820800

List of values

[1, 10, 100, 1136, 14816, 220032, 3679488, 68548608, 1409347584, 31717048320, 775808778240, 20499651624960, 582040706088960, 17674457139118080, 571655258741145600, 19621314364126003200, 712374154997583052800, 27277192770051951820800]

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

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