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.

A085244 Permanent of the symmetric n X n matrix M defined by M(i,j) = gcd(i,j) for 1 <= i,j <= n.

Table of values

n a(n)
1 1
2 3
3 14
4 112
5 872
6 14372
7 154480
8 3098480
9 59710816
10 1688186176
11 27925409152
12 1327833590272
13 25675495200768
14 1017195720916224
15 47444016840290304
16 2267031138313024512
17 56480432945454004224
18 4051971981329937580032

List of values

[1, 3, 14, 112, 872, 14372, 154480, 3098480, 59710816, 1688186176, 27925409152, 1327833590272, 25675495200768, 1017195720916224, 47444016840290304, 2267031138313024512, 56480432945454004224, 4051971981329937580032]