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.

A359560 a(n) is the permanent of an n X n Hermitian Toeplitz matrix whose first row consists of 1, 2*i, ..., n*i, where i denotes the imaginary unit.

Table of values

n a(n)
0 1
1 1
2 5
3 18
4 360
5 2800
6 151424
7 1926704
8 218991568
9 3961998320
10 815094714320
11 19339258670304
12 6524060415099520
13 192715406460607360
14 99364368150722162944
15 3525158026102570745600
16 2635328330670632415828224
17 109381927750670379873854720
18 113797518402277434839782802688

List of values

[1, 1, 5, 18, 360, 2800, 151424, 1926704, 218991568, 3961998320, 815094714320, 19339258670304, 6524060415099520, 192715406460607360, 99364368150722162944, 3525158026102570745600, 2635328330670632415828224, 109381927750670379873854720, 113797518402277434839782802688]