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.

A138913 G.f. A(x) satisfies: 4*A(x) = A(A(A(x))) + 3*x + x^2 with A(0)=0.

Table of values

n a(n)
1 1
2 1
3 6
4 99
5 2362
6 70484
7 2463460
8 97309959
9 4251047468
10 202470323828
11 10409697289888
12 573563068625768
13 33682595044746416
14 2099111839596600644
15 138339363094940014088
16 9612941947359915802978
17 702527738704990333954432

List of values

[1, 1, 6, 99, 2362, 70484, 2463460, 97309959, 4251047468, 202470323828, 10409697289888, 573563068625768, 33682595044746416, 2099111839596600644, 138339363094940014088, 9612941947359915802978, 702527738704990333954432]