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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.

A300489 a(n) = n! * [x^n] -log(1 - x)/(1 - n*x).

Table of values

n a(n)
0 0
1 1
2 5
3 65
4 1766
5 83674
6 6124584
7 639826452
8 90328291248
9 16558780949136
10 3823322392154880
11 1085461798576638240
12 371610484248792556800
13 150961314165968542273920
14 71790302154674639506682880
15 39506878580692178250399571200
16 24909116615180033772524150937600

List of values

[0, 1, 5, 65, 1766, 83674, 6124584, 639826452, 90328291248, 16558780949136, 3823322392154880, 1085461798576638240, 371610484248792556800, 150961314165968542273920, 71790302154674639506682880, 39506878580692178250399571200, 24909116615180033772524150937600]

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

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