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.

A052720 Expansion of e.g.f.: (1 - 4*x + 3*x^2)*(1 - 2*x - sqrt(1-4*x))/2 - x^2 + 2*x^3.

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 0
5 0
6 720
7 30240
8 1088640
9 39916800
10 1556755200
11 65383718400
12 2964061900800
13 144815595724800
14 7602818775552000
15 427447366714368000
16 25646842002862080000
17 1636734826000834560000
18 110752389892723138560000

List of values

[0, 0, 0, 0, 0, 0, 720, 30240, 1088640, 39916800, 1556755200, 65383718400, 2964061900800, 144815595724800, 7602818775552000, 427447366714368000, 25646842002862080000, 1636734826000834560000, 110752389892723138560000]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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