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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.

A216314 G.f. satisfies A(x) = (1 + x*A(x)) * (1 + 2*x*A(x)^2).

Table of values

n a(n)
0 1
1 3
2 17
3 121
4 965
5 8247
6 73841
7 683713
8 6493145
9 62898859
10 619079889
11 6173490857
12 62239144525
13 633323532783
14 6496052173665
15 67093423506049
16 697181754821297
17 7283521984427283
18 76455801614169809
19 806004056649062937
20 8529783421905380629
21 90584730265930813607

List of values

[1, 3, 17, 121, 965, 8247, 73841, 683713, 6493145, 62898859, 619079889, 6173490857, 62239144525, 633323532783, 6496052173665, 67093423506049, 697181754821297, 7283521984427283, 76455801614169809, 806004056649062937, 8529783421905380629, 90584730265930813607]

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

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