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.

A215114 G.f. satisfies: A(x) = x + 2*x^2 + x*A(A(A(x))).

Table of values

n a(n)
1 1
2 3
3 9
4 81
5 891
6 11907
7 184437
8 3199581
9 60932007
10 1257133527
11 27836230041
12 656867748537
13 16429561047891
14 433686821472747
15 12038953175046909
16 350402975398982133
17 10665927632978564895
18 338769129913521564735
19 11205026468737167058785

List of values

[1, 3, 9, 81, 891, 11907, 184437, 3199581, 60932007, 1257133527, 27836230041, 656867748537, 16429561047891, 433686821472747, 12038953175046909, 350402975398982133, 10665927632978564895, 338769129913521564735, 11205026468737167058785]

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

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