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.

A275550 Number of classes of endofunctions of [n] under reversal and complement to n+1.

Table of values

n a(n)
0 1
1 1
2 2
3 10
4 72
5 819
6 11772
7 206572
8 4196352
9 96871525
10 2500050000
11 71328400806
12 2229026605056
13 75718793541895
14 2778001759096256
15 109473473278652344
16 4611686020574871552
17 206810065502975099529

List of values

[1, 1, 2, 10, 72, 819, 11772, 206572, 4196352, 96871525, 2500050000, 71328400806, 2229026605056, 75718793541895, 2778001759096256, 109473473278652344, 4611686020574871552, 206810065502975099529]

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

Content is available under The OEIS End-User License Agreement.