A not so useful HP-16C program

[Gerson W. Barbosa]

(04-22-2018 01:08 AM)Joe Horn Wrote:  Ok, I give up. What is it for? What does it do? How is it used? Some hints, please.

Don’t give up, at least of yet. Enter an integer number. Start with 1 and run the program. Increase it to 2, then to 3 and see what you get in X and Y. Repeat this again pressing the R/S key afterwards.
I’ll give an reference later.

Painstakingly trying to fix errors on my smartphone while watching to Lost in Space on Netflix (Danger, Will Robinson!). Who said touchscreen was a good idea?