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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.

A092238 Number of ways to write the permutation n,n-1,...,1 of 1,2,...,n as a product of n(n-1)/2 transpositions, where each transposition of 1,2,...,n occurs exactly once.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 64
5 59712
6 3580519776

List of values

[1, 1, 1, 2, 64, 59712, 3580519776]

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