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.

A247075 Expansion of e.g.f.: x^2*G'(x)/G(x)^2, where G(x) satisfies G(x) = x*(1+log(1+G(x))).

Table of values

n a(n)
0 1
1 0
2 -1
3 -2
4 12
5 96
6 -220
7 -7440
8 -15624
9 813120
10 7340112
11 -104165280
12 -2442773520
13 8815815360
14 855578733984
15 4653629425536
16 -317564443445760
17 -5591544140206080
18 110965435244017920
19 4730495445765296640
20 -16883238483957574656

List of values

[1, 0, -1, -2, 12, 96, -220, -7440, -15624, 813120, 7340112, -104165280, -2442773520, 8815815360, 855578733984, 4653629425536, -317564443445760, -5591544140206080, 110965435244017920, 4730495445765296640, -16883238483957574656]