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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.

A358688 a(n) = n! * Sum_{k=0..n} k^(k * (n-k)) / (n-k)!.

Table of values

n a(n)
0 1
1 2
2 5
3 34
4 869
5 75866
6 28213327
7 39049033346
8 256215628707257
9 7710689746589777938
10 1063776147486867074877851
11 870059224717752809087935599002
12 3104894940194751778363241199111802885
13 77521065749331962430758061530260243383954602

List of values

[1, 2, 5, 34, 869, 75866, 28213327, 39049033346, 256215628707257, 7710689746589777938, 1063776147486867074877851, 870059224717752809087935599002, 3104894940194751778363241199111802885, 77521065749331962430758061530260243383954602]

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

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