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.

A293286 a(n) = A181544(2n, 2n-1).

Table of values

n a(n)
1 20
2 8464
3 4050864
4 2116980800
5 1173644492800
6 678353946298560
7 404352269157205152
8 246796318508780847360
9 153477802845690943118400
10 96903346351876187722368000
11 61954834924471706682462940800
12 40029904663914104968204952365824
13 26096917229103772343967114415006304

List of values

[20, 8464, 4050864, 2116980800, 1173644492800, 678353946298560, 404352269157205152, 246796318508780847360, 153477802845690943118400, 96903346351876187722368000, 61954834924471706682462940800, 40029904663914104968204952365824, 26096917229103772343967114415006304]