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.

A264225 G.f. A(x) satisfies: A(x)^2 = A( x^2/(1-6*x) ), with A(0) = 0.

Table of values

n a(n)
1 1
2 3
3 15
4 81
5 462
6 2718
7 16344
8 99900
9 618567
10 3870909
11 24441021
12 155510523
13 996109245
14 6418243575
15 41572149615
16 270536350545
17 1767990955980
18 11598120859860
19 76347126498420
20 504148079084940
21 3338585176489560
22 22166530404950520
23 147525638070221640
24 983978335278966456
25 6576191509703182677
26 44031626057441376423

List of values

[1, 3, 15, 81, 462, 2718, 16344, 99900, 618567, 3870909, 24441021, 155510523, 996109245, 6418243575, 41572149615, 270536350545, 1767990955980, 11598120859860, 76347126498420, 504148079084940, 3338585176489560, 22166530404950520, 147525638070221640, 983978335278966456, 6576191509703182677, 44031626057441376423]

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

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