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.

A060309 A001067 appears to count the periodic points for a certain map. If so, then this is the sequence of the numbers of orbits of length n.

Table of values

n a(n)
1 1
2 0
3 0
4 0
5 0
6 115
7 0
8 452
9 4874
10 17461
11 7062
12 19696950
13 50610
14 242341439
15 114877883680
16 481832564850
17 8919335150
18 1461959530725195586
19 8116326631140
20 13054135924822447372
21 72385602091336704890
22 115013510658268698717
23 1127506827209663824722

List of values

[1, 0, 0, 0, 0, 115, 0, 452, 4874, 17461, 7062, 19696950, 50610, 242341439, 114877883680, 481832564850, 8919335150, 1461959530725195586, 8116326631140, 13054135924822447372, 72385602091336704890, 115013510658268698717, 1127506827209663824722]