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.

A301931 G.f. A(x) satisfies: A(x) = x*(1 + A(x)*A'(x)) / (1 - A(x)*A'(x)).

Table of values

n a(n)
1 1
2 2
3 14
4 154
5 2186
6 36930
7 712158
8 15295602
9 360155378
10 9196938274
11 252714360398
12 7428201595178
13 232480106673562
14 7717715629942274
15 270896581615492926
16 10025955123898058082
17 390290027013023089122
18 15945008348985522925890
19 682270367930391378957198
20 30518971384549282782489786
21 1424657384555111198491140138
22 69290703924209121823629630018

List of values

[1, 2, 14, 154, 2186, 36930, 712158, 15295602, 360155378, 9196938274, 252714360398, 7428201595178, 232480106673562, 7717715629942274, 270896581615492926, 10025955123898058082, 390290027013023089122, 15945008348985522925890, 682270367930391378957198, 30518971384549282782489786, 1424657384555111198491140138, 69290703924209121823629630018]