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.

A118804 G.f.: 1 = Sum_{n>=0} a(n)*x^n / Product_{k=1..n+1} (1+k*x)^2.

Table of values

n a(n)
0 1
1 2
2 9
3 66
4 685
5 9294
6 156697
7 3169910
8 74998081
9 2035262154
10 62391632417
11 2134187066010
12 80641239109677
13 3337651407273846
14 150239268816661137
15 7310140430519234862
16 382439924662714479457
17 21413128578896024921298
18 1277905479699750127195097

List of values

[1, 2, 9, 66, 685, 9294, 156697, 3169910, 74998081, 2035262154, 62391632417, 2134187066010, 80641239109677, 3337651407273846, 150239268816661137, 7310140430519234862, 382439924662714479457, 21413128578896024921298, 1277905479699750127195097]