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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.

A336247 a(n) = (n!)^n * Sum_{k=0..n} 1 / (k!)^n.

Table of values

n a(n)
0 1
1 2
2 9
3 460
4 684545
5 50547203126
6 280807908057046657
7 165858480204085842350156792
8 13997217669604247492958380810030809089
9 218434494471443385260764665498960241287478619115850
10 792268399795067334328715213043856435592857850955707257780000000001

List of values

[1, 2, 9, 460, 684545, 50547203126, 280807908057046657, 165858480204085842350156792, 13997217669604247492958380810030809089, 218434494471443385260764665498960241287478619115850, 792268399795067334328715213043856435592857850955707257780000000001]

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

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