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.

A119472 G.f. A(x) equals the composition of functions x*(1 + a(n)*x^n); let F_1(x) = x, F_{n+1}(x) = F_n( x*(1 + a(n)*x^n) ), then A(x) = limit F_n(x): A(x) = x*(1+a(1)*x) o x*(1+a(2)*x^2) o ... o x*(1+a(n)*x^n) o ...

Table of values

n a(n)
1 1
2 1
3 1
4 3
5 5
6 15
7 42
8 124
9 352
10 1124
11 3574
12 11588
13 38033
14 127297
15 426302
16 1459632
17 4986161
18 17345028
19 60373874
20 212488958
21 747271311
22 2661073611
23 9451241495
24 33925353554
25 121618969926
26 439680022154
27 1586931378911
28 5775629048634

List of values

[1, 1, 1, 3, 5, 15, 42, 124, 352, 1124, 3574, 11588, 38033, 127297, 426302, 1459632, 4986161, 17345028, 60373874, 212488958, 747271311, 2661073611, 9451241495, 33925353554, 121618969926, 439680022154, 1586931378911, 5775629048634]