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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.

A291507 a(n) = (n!)^9 * Sum_{i=1..n} 1/i^9.

Table of values

n a(n)
0 0
1 1
2 513
3 10097891
4 2647111616000
5 5170142516807540224
6 52103129720841632885243904
7 2102549272223560776918400601161728
8 282199388424234851655058321255905292713984
9 109329825340451764123791003609208862665771818418176

List of values

[0, 1, 513, 10097891, 2647111616000, 5170142516807540224, 52103129720841632885243904, 2102549272223560776918400601161728, 282199388424234851655058321255905292713984, 109329825340451764123791003609208862665771818418176]

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

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