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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.

A054780 Number of n-covers of a labeled n-set.

Table of values

n a(n)
0 1
1 1
2 3
3 32
4 1225
5 155106
6 63602770
7 85538516963
8 386246934638991
9 6001601072676524540
10 327951891446717800997416
11 64149416776011080449232990868
12 45546527789182522411309599498741023
13 118653450898277491435912500458608964207578

List of values

[1, 1, 3, 32, 1225, 155106, 63602770, 85538516963, 386246934638991, 6001601072676524540, 327951891446717800997416, 64149416776011080449232990868, 45546527789182522411309599498741023, 118653450898277491435912500458608964207578]

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

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