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I'd do it out of scientific curiosity. (thelemmy.club)
submitted 2 days ago by mech@feddit.org to c/mathmemes@lemmy.blahaj.zone
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[-] Scipitie@lemmy.dbzer0.com 3 points 2 days ago* (last edited 2 days ago)

Edit: misread the prompt, below original post is wrong, I apologize!

Noe start with three or any odd number :p 3 , 7, 15, 31, 33.....

I think only 2^x has the outcome you describe, please correct me if I'm mistaken.

[-] addison@piefed.social 10 points 2 days ago

Odd numbers cause double plus one additional passengers to board. So a cycle starting with 3 is a bit different.

3 -> 10 -> 5 -> 16 -> 8 -> 4 -> 2 -> 1 -> 4 ...

[-] Scipitie@lemmy.dbzer0.com 2 points 2 days ago

Edited my response, I misread it. Thank you!

[-] jbrains@sh.itjust.works 5 points 2 days ago

You misread it, too, did you? ๐Ÿ˜‰

[-] wonderingwanderer@sopuli.xyz 2 points 2 days ago* (last edited 2 days ago)

7โ†’22โ†’11โ†’34โ†’17โ†’52โ†’26โ†’13โ†’40โ†’20โ†’10โ†’5โ†’16โ†’8โ†’4โ†’2โ†’1โ†’4โ†’2โ†’1โ†’4โ†’2โ†’1...

Edit: also, 9โ†’28โ†’14โ†’7...

And, 15โ†’46โ†’23โ†’70โ†’35โ†’106โ†’53โ†’160โ†’80โ†’40โ†’20โ†’10โ†’5โ†’16โ†’8โ†’4โ†’2โ†’1...

Or even, 19โ†’58โ†’29โ†’88โ†’44โ†’22โ†’11โ†’...

And lest we forget, 3โ†’10โ†’5โ†’16โ†’8โ†’4โ†’2โ†’1...

That covers every odd number below 20. Want me to do 21 and 25, too? Perhaps 27?

[-] Scipitie@lemmy.dbzer0.com 1 points 2 days ago

The trick is to read the prompt. I had 2n+1 are the new number of passengers.

Had to reconstruct it from your answer though.

Anyway, thanks!

this post was submitted on 11 Feb 2026
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