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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.

A068565 Denominators of Sum_{k=1..n} 1/(k * 2^k).

Table of values

n a(n)
1 2
2 8
3 3
4 192
5 960
6 1920
7 1680
8 215040
9 645120
10 64512
11 1419264
12 11354112
13 147603456
14 295206912
15 46126080
16 47233105920
17 802962800640
18 802962800640
19 15256293212160
20 61025172848640
21 61025172848640
22 122050345697280

List of values

[2, 8, 3, 192, 960, 1920, 1680, 215040, 645120, 64512, 1419264, 11354112, 147603456, 295206912, 46126080, 47233105920, 802962800640, 802962800640, 15256293212160, 61025172848640, 61025172848640, 122050345697280]

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

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