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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.

A357591 Expansion of e.g.f. (exp(x) - 1) * tan((exp(x) - 1)/2).

Table of values

n a(n)
0 0
1 0
2 1
3 3
4 8
5 25
6 99
7 476
8 2643
9 16575
10 116002
11 895719
12 7554311
13 69051034
14 679913073
15 7174562327
16 80765185416
17 966076987581
18 12235992073975
19 163590477924708
20 2302288709067167
21 34021599945907915
22 526690307104399482
23 8524372522971447683
24 143963947160570293851

List of values

[0, 0, 1, 3, 8, 25, 99, 476, 2643, 16575, 116002, 895719, 7554311, 69051034, 679913073, 7174562327, 80765185416, 966076987581, 12235992073975, 163590477924708, 2302288709067167, 34021599945907915, 526690307104399482, 8524372522971447683, 143963947160570293851]

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

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