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.

A346934 Permanent of the 2n X 2n matrix with the (i,j)-entry i-j (i,j=1..2n).

Table of values

n a(n)
1 -1
2 52
3 -18660
4 24446016
5 -85000104000
6 647188836814080
7 -9486416237249952000
8 244072502056661870592000
9 -10282514440038927957603532800
10 671904022157076034864609763328000
11 -65203712913305114275839483698454528000

List of values

[-1, 52, -18660, 24446016, -85000104000, 647188836814080, -9486416237249952000, 244072502056661870592000, -10282514440038927957603532800, 671904022157076034864609763328000, -65203712913305114275839483698454528000]