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.

A278857 a(n) = permanent M_n where M_n is the n X n matrix m(i,j) = (i-j)^2.

Table of values

n a(n)
0 1
1 0
2 1
3 8
4 676
5 49600
6 10335908
7 2658757248
8 1214367336000
9 730771063280640
10 642638269862752320
11 736176718456263406080
12 1122592471007868379259136
13 2168016139899273930219233280
14 5288852927890824307509101287680
15 15889369670472598370104100032512000

List of values

[1, 0, 1, 8, 676, 49600, 10335908, 2658757248, 1214367336000, 730771063280640, 642638269862752320, 736176718456263406080, 1122592471007868379259136, 2168016139899273930219233280, 5288852927890824307509101287680, 15889369670472598370104100032512000]