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.

A367071 G.f. satisfies A(x) = 1 + 2*x + 2*x^2*A(x)^2.

Table of values

n a(n)
0 1
1 2
2 2
3 8
4 16
5 48
6 136
7 384
8 1184
9 3520
10 10944
11 34048
12 107008
13 340480
14 1087104
15 3502080
16 11333120
17 36867072
18 120491008
19 395276288
20 1301700608
21 4300414976
22 14250496000
23 47353233408
24 157747462144
25 526740717568
26 1762653863936
27 5910312910848

List of values

[1, 2, 2, 8, 16, 48, 136, 384, 1184, 3520, 10944, 34048, 107008, 340480, 1087104, 3502080, 11333120, 36867072, 120491008, 395276288, 1301700608, 4300414976, 14250496000, 47353233408, 157747462144, 526740717568, 1762653863936, 5910312910848]

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

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