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.

A066300 Number of n X n matrices with exactly 2 1's in each row, other entries 0.

Table of values

n a(n)
1 0
2 1
3 27
4 1296
5 100000
6 11390625
7 1801088541
8 377801998336
9 101559956668416
10 34050628916015625
11 13931233916552734375
12 6831675453247426400256
13 3955759092264800909058048
14 2670419511272061205254504361

List of values

[0, 1, 27, 1296, 100000, 11390625, 1801088541, 377801998336, 101559956668416, 34050628916015625, 13931233916552734375, 6831675453247426400256, 3955759092264800909058048, 2670419511272061205254504361]