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.

A128326 G.f.: A(x) = 1 + G(G(G(x))), where G(x) = x + x*G(G(x)) is the g.f. of A030266.

Table of values

n a(n)
0 1
1 1
2 3
3 12
4 57
5 305
6 1787
7 11269
8 75629
9 535960
10 3987913
11 31021693
12 251445581
13 2117993712
14 18499513147
15 167246537937
16 1562556275281
17 15066167302802
18 149737897716757
19 1532313152898208
20 16129331500727047

List of values

[1, 1, 3, 12, 57, 305, 1787, 11269, 75629, 535960, 3987913, 31021693, 251445581, 2117993712, 18499513147, 167246537937, 1562556275281, 15066167302802, 149737897716757, 1532313152898208, 16129331500727047]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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