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.

A052715 Expansion of e.g.f. (1-2*x-sqrt(1-4*x))/2 - x*(1-2*x-sqrt(1-4*x)) - x^2.

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 24
5 480
6 10080
7 241920
8 6652800
9 207567360
10 7264857600
11 282291609600
12 12067966310400
13 563171761152000
14 28496491114291200
15 1554354060779520000
16 90929712555601920000
17 5679609738088366080000

List of values

[0, 0, 0, 0, 24, 480, 10080, 241920, 6652800, 207567360, 7264857600, 282291609600, 12067966310400, 563171761152000, 28496491114291200, 1554354060779520000, 90929712555601920000, 5679609738088366080000]