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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.

A276913 E.g.f. A(x) satisfies: Series_Reversion( A(x)*exp(x) ) = A(x)*exp(-x).

Table of values

n a(n)
1 1
2 0
3 3
4 0
5 -35
6 0
7 6111
8 0
9 -3015207
10 0
11 3457389595
12 0
13 -7910176435083
14 0
15 32652618744201015
16 0
17 -225992449753641748943
18 0
19 2477459751096859267509171
20 0
21 -41090881423264757483386565235
22 0
23 992851798453466404257942193460239
24 0
25 -33857339246997857308988305386104611575
26 0
27 1586206583926227307173185697414192414735051
28 0
29 -99763501980273385738989314186327124186627104987
30 0

List of values

[1, 0, 3, 0, -35, 0, 6111, 0, -3015207, 0, 3457389595, 0, -7910176435083, 0, 32652618744201015, 0, -225992449753641748943, 0, 2477459751096859267509171, 0, -41090881423264757483386565235, 0, 992851798453466404257942193460239, 0, -33857339246997857308988305386104611575, 0, 1586206583926227307173185697414192414735051, 0, -99763501980273385738989314186327124186627104987, 0]

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