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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.

A293022 a(n) = n! * [x^n] exp(n*sinh(x)).

Table of values

n a(n)
0 1
1 1
2 4
3 30
4 320
5 4380
6 73152
7 1443008
8 32837632
9 846829008
10 24406425600
11 777438110240
12 27122380259328
13 1028481186011968
14 42119646804852736
15 1852697321086064640
16 87113569172046479360
17 4360314205952755126528
18 231474221309788621111296
19 12990330117363343153415680

List of values

[1, 1, 4, 30, 320, 4380, 73152, 1443008, 32837632, 846829008, 24406425600, 777438110240, 27122380259328, 1028481186011968, 42119646804852736, 1852697321086064640, 87113569172046479360, 4360314205952755126528, 231474221309788621111296, 12990330117363343153415680]

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

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