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.

A102922 Column 1 of triangle A102920, which equals the matrix square of A102098.

Table of values

n a(n)
0 0
1 4
2 40
3 1128
4 61120
5 5466320
6 735847800
7 139910204080
8 35858685086352
9 11953187179149408
10 5037776918810353960
11 2623732639426967662648
12 1656984556235159516822400
13 1248959074762601252295551168

List of values

[0, 4, 40, 1128, 61120, 5466320, 735847800, 139910204080, 35858685086352, 11953187179149408, 5037776918810353960, 2623732639426967662648, 1656984556235159516822400, 1248959074762601252295551168]