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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.

A145901 Triangle of f-vectors of the simplicial complexes dual to the permutohedra of type B_n.

Table of values

n a(n)
0 1
1 1
2 2
3 1
4 8
5 8
6 1
7 26
8 72
9 48
10 1
11 80
12 464
13 768
14 384
15 1
16 242
17 2640
18 8160
19 9600
20 3840
21 1
22 728
23 14168
24 72960
25 151680
26 138240
27 46080
28 1
29 2186
30 73752
31 595728
32 1948800
33 3037440
34 2257920
35 645120
36 1
37 6560
38 377504
39 4612608
40 22305024
41 52899840

List of values

[1, 1, 2, 1, 8, 8, 1, 26, 72, 48, 1, 80, 464, 768, 384, 1, 242, 2640, 8160, 9600, 3840, 1, 728, 14168, 72960, 151680, 138240, 46080, 1, 2186, 73752, 595728, 1948800, 3037440, 2257920, 645120, 1, 6560, 377504, 4612608, 22305024, 52899840]

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

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