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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.

A262973 Total tail length of all iteration trajectories of all elements of random mappings from [n] to [n].

Table of values

n a(n)
1 0
2 2
3 36
4 624
5 11800
6 248400
7 5817084
8 150660608
9 4285808496
10 133010784000
11 4475982692500
12 162419627132928
13 6324111407554824
14 263067938335913984
15 11645155099754347500
16 546652030933421260800
17 27126781579050558916576
18 1418971858887930496745472

List of values

[0, 2, 36, 624, 11800, 248400, 5817084, 150660608, 4285808496, 133010784000, 4475982692500, 162419627132928, 6324111407554824, 263067938335913984, 11645155099754347500, 546652030933421260800, 27126781579050558916576, 1418971858887930496745472]

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

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