http://www.perlmonks.org?node_id=528796


in reply to Re: 2, 2, 2, 3, 7, 22, 83, ...
in thread 2, 2, 2, 3, 7, 22, 83, ...

it's trivial to construct a simple eigth order function which will map any solution to every single value listed

In fact, I've even written a japh based on that idea: Japh algebra. (A bit related is Fast Japh.)