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.

A301409 G.f. A(x) satisfies: A(x) = 1/(1 - x*A(x) - x^2*A(x)/(1 - 2*x*A(x) - 2*x^2*A(x)/(1 - 3*x*A(x) - 3*x^2*A(x)/(1 - ...)))), a continued fraction.

Table of values

n a(n)
0 1
1 1
2 3
3 11
4 47
5 221
6 1115
7 5947
8 33231
9 193453
10 1169239
11 7322827
12 47479855
13 318661109
14 2214609419
15 15948123771
16 119101155215
17 923085573061
18 7428862280327
19 62094175343547
20 538956428549743
21 4854974080968669
22 45347892277523467
23 438688081755797051
24 4389356528040108847

List of values

[1, 1, 3, 11, 47, 221, 1115, 5947, 33231, 193453, 1169239, 7322827, 47479855, 318661109, 2214609419, 15948123771, 119101155215, 923085573061, 7428862280327, 62094175343547, 538956428549743, 4854974080968669, 45347892277523467, 438688081755797051, 4389356528040108847]

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

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