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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.

A158887 a(n) = (n+1)^n * n! * binomial(n-1 + 1/(n+1), n).

Table of values

n a(n)
0 1
1 1
2 4
3 45
4 1056
5 43225
6 2756160
7 253586025
8 31872332800
9 5252921480961
10 1099886703552000
11 285322741626047125
12 89844523369696972800
13 33764841634845724313625
14 14930493174337400252809216

List of values

[1, 1, 4, 45, 1056, 43225, 2756160, 253586025, 31872332800, 5252921480961, 1099886703552000, 285322741626047125, 89844523369696972800, 33764841634845724313625, 14930493174337400252809216]

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

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