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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.

A123398 Topswops: number of permutations of cards achieving A000375(n).

Table of values

n a(n)
1 1
2 1
3 2
4 2
5 1
6 5
7 2
8 1
9 1
10 1
11 1
12 1
13 1
14 4
15 6
16 1
17 2
18 1
19 4

List of values

[1, 1, 2, 2, 1, 5, 2, 1, 1, 1, 1, 1, 1, 4, 6, 1, 2, 1, 4]

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