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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.

A348146 a(n) = Sum_{d|n} (d!)^(n-d).

Table of values

n a(n)
1 1
2 2
3 2
4 6
5 2
6 234
7 2
8 331842
9 46658
10 24883200258
11 2
12 139314179589392898
13 2
14 82606411253903523840004098
15 619173642242176782338
16 6984964247141514123665660725036072962
17 2
18 109110688415571335888754861121236891599318185050114
19 2

List of values

[1, 2, 2, 6, 2, 234, 2, 331842, 46658, 24883200258, 2, 139314179589392898, 2, 82606411253903523840004098, 619173642242176782338, 6984964247141514123665660725036072962, 2, 109110688415571335888754861121236891599318185050114, 2]

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

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