cp's OEIS Frontend

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.

A081158 Number of even cycles in range [A014137(2n-1)..A014138(2n-1)] of permutation A057505/A057506, with no fixed points of A057164.

Table of values

n a(n)
0 0
1 0
2 0
3 8
4 60
5 402
6 2474
7 14496
8 84282
9 492048

List of values

[0, 0, 0, 8, 60, 402, 2474, 14496, 84282, 492048]