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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.

A371547 Expansion of e.g.f. Product_{k>=1} 1 / (1 - 2*x^k/k).

Table of values

n a(n)
0 1
1 2
2 10
3 64
4 548
5 5608
6 68936
7 973600
8 15700352
9 283559424
10 5685644928
11 125227712256
12 3007981305600
13 78237291643392
14 2191215982262784
15 65744691667064832
16 2103999919044163584
17 71538799576401408000
18 2575460412946013810688
19 97868678834373255069696
20 3914776163575281528889344

List of values

[1, 2, 10, 64, 548, 5608, 68936, 973600, 15700352, 283559424, 5685644928, 125227712256, 3007981305600, 78237291643392, 2191215982262784, 65744691667064832, 2103999919044163584, 71538799576401408000, 2575460412946013810688, 97868678834373255069696, 3914776163575281528889344]

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

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