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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.

A232163 Cardinality of the Weyl alternation set corresponding to the zero-weight in the adjoint representation of the Lie algebra so(2n+1).

Table of values

n a(n)
0 0
1 1
2 2
3 5
4 10
5 22
6 49
7 106
8 231
9 506
10 1104
11 2409
12 5262
13 11489
14 25082
15 54766
16 119577
17 261078
18 570035
19 1244610
20 2717456
21 5933249
22 12954570
23 28284797
24 61756570
25 134838326
26 294403857
27 642796690
28 1403472095
29 3064318682
30 6690584704

List of values

[0, 1, 2, 5, 10, 22, 49, 106, 231, 506, 1104, 2409, 5262, 11489, 25082, 54766, 119577, 261078, 570035, 1244610, 2717456, 5933249, 12954570, 28284797, 61756570, 134838326, 294403857, 642796690, 1403472095, 3064318682, 6690584704]

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

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