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.

A227222 G.f. satisfies: A(x) = Sum{n>=0} A( n*x/(1-n*x) ) * x^n, with A(0)=1.

Table of values

n a(n)
0 1
1 1
2 2
3 6
4 27
5 172
6 1508
7 18107
8 297532
9 6694132
10 206841391
11 8816277300
12 520844677834
13 42854370882379
14 4933351077116176
15 797908056582772334
16 181972606629594221271
17 58701383528452842764544
18 26853636463946258949427440
19 17457976736153040916394583563

List of values

[1, 1, 2, 6, 27, 172, 1508, 18107, 297532, 6694132, 206841391, 8816277300, 520844677834, 42854370882379, 4933351077116176, 797908056582772334, 181972606629594221271, 58701383528452842764544, 26853636463946258949427440, 17457976736153040916394583563]