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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.

A274377 E.g.f. satisfies: A(x)^A(x) = exp(2*x) * A(-x)^A(-x).

Table of values

n a(n)
0 1
1 1
2 0
3 1
4 0
5 16
6 0
7 736
8 0
9 67096
10 0
11 10163176
12 0
13 2306198896
14 0
15 732199108096
16 0
17 309860700130816
18 0
19 168568765338224896
20 0
21 114619705107961862656
22 0
23 95251358122177791486976
24 0
25 94984793274454431691503616
26 0
27 111939507886837612683516276736
28 0
29 153907136552991217284274400567296
30 0
31 244164979570216285201628515234840576
32 0
33 442692827509235885935744380253757341696
34 0
35 909667081143908558901949811564629988048896

List of values

[1, 1, 0, 1, 0, 16, 0, 736, 0, 67096, 0, 10163176, 0, 2306198896, 0, 732199108096, 0, 309860700130816, 0, 168568765338224896, 0, 114619705107961862656, 0, 95251358122177791486976, 0, 94984793274454431691503616, 0, 111939507886837612683516276736, 0, 153907136552991217284274400567296, 0, 244164979570216285201628515234840576, 0, 442692827509235885935744380253757341696, 0, 909667081143908558901949811564629988048896]

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