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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.

A269067 Numerator of the volume of d dimensional symmetric convex cuboid with constraints |x1 + x2 + ... xd| <= 1 and |x1|, |x2|, ..., |xd| <= 1.

Table of values

n a(n)
1 2
2 3
3 16
4 115
5 88
6 5887
7 19328
8 259723
9 124952
10 381773117
11 41931328
12 20646903199
13 866732192
14 467168310097
15 2386873693184
16 75920439315929441
17 97261697912
18 5278968781483042969
19 2387693641959232
20 9093099984535515162569
21 10872995484706511008
22 168702835448329388944396777
23 38650653745373963289088

List of values

[2, 3, 16, 115, 88, 5887, 19328, 259723, 124952, 381773117, 41931328, 20646903199, 866732192, 467168310097, 2386873693184, 75920439315929441, 97261697912, 5278968781483042969, 2387693641959232, 9093099984535515162569, 10872995484706511008, 168702835448329388944396777, 38650653745373963289088]

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

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