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.

A081159 Number of even cycles in range [A014137(2n)..A014138(2n)] of permutation A057505/A057506, with no fixed points of either A057163 or A057164.

Table of values

n a(n)
0 0
1 0
2 2
3 20
4 148
5 986
6 5918
7 34708
8 202664

List of values

[0, 0, 2, 20, 148, 986, 5918, 34708, 202664]

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

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