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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.

A336250 a(n) = (n!)^n * Sum_{k=1..n} (-1)^(k+1) / k^n.

Table of values

n a(n)
0 0
1 1
2 3
3 197
4 313840
5 24191662624
6 137300308036448256
7 81994640912971156525105152
8 6958651785463110878359050928999366656
9 108902755985567407887534498777329973193771818418176
10 395560567918154447056086270973712023435510589158871531520000000000

List of values

[0, 1, 3, 197, 313840, 24191662624, 137300308036448256, 81994640912971156525105152, 6958651785463110878359050928999366656, 108902755985567407887534498777329973193771818418176, 395560567918154447056086270973712023435510589158871531520000000000]

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

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