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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.

A363115 Expansion of e.g.f. log(1 - log( sqrt(1-2*x) )).

Table of values

n a(n)
0 0
1 1
2 1
3 4
4 22
5 168
6 1616
7 18800
8 256432
9 4012288
10 70825344
11 1392214272
12 30157260288
13 713680180224
14 18319344307200
15 506934586748928
16 15043324048398336
17 476540007615725568
18 16050059458251915264
19 572710950848334200832
20 21582629580640554123264
21 856552661738538476765184

List of values

[0, 1, 1, 4, 22, 168, 1616, 18800, 256432, 4012288, 70825344, 1392214272, 30157260288, 713680180224, 18319344307200, 506934586748928, 15043324048398336, 476540007615725568, 16050059458251915264, 572710950848334200832, 21582629580640554123264, 856552661738538476765184]

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

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