cp's OEIS Frontend

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.

A273997 Number of endofunctions on [n] whose cycle lengths are squares.

Table of values

n a(n)
0 1
1 1
2 3
3 16
4 131
5 1446
6 19957
7 329344
8 6315129
9 137942380
10 3382214291
11 92014156224
12 2751300514987
13 89701699067176
14 3167429783609925
15 120428877629249536
16 4905431165356442993
17 213120603686615692176
18 9837426739843075654819
19 480775495859934668704000

List of values

[1, 1, 3, 16, 131, 1446, 19957, 329344, 6315129, 137942380, 3382214291, 92014156224, 2751300514987, 89701699067176, 3167429783609925, 120428877629249536, 4905431165356442993, 213120603686615692176, 9837426739843075654819, 480775495859934668704000]

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

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