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.

A245913 Number of pairs of endofunctions f, g on [n] satisfying f(g^4(i)) = f(i) for all i in [n].

Table of values

n a(n)
0 1
1 1
2 12
3 249
4 9184
5 488745
6 35463456
7 3212948809
8 369653885952
9 52089606360081
10 8863922597593600
11 1752215974571247801
12 402913941534323970048
13 106177876504463493003001
14 31939024924944619647750144
15 10756222724503803551432639625
16 4050020577581980281160989147136

List of values

[1, 1, 12, 249, 9184, 488745, 35463456, 3212948809, 369653885952, 52089606360081, 8863922597593600, 1752215974571247801, 402913941534323970048, 106177876504463493003001, 31939024924944619647750144, 10756222724503803551432639625, 4050020577581980281160989147136]

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

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