Christian Lawson-Perfect @christianp@mathstodon.xyz

@xp_eileen_maths 🎉

Wikipedia: all the right facts, not necessarily in the right order.

What's not in an encyclopedia?

You could think of this game as "the Collatz sequence with a running total" - what happens next doesn't just depend on which number you're on now, it also depends on all the numbers you've seen before.

Think of a number, and keep a running total starting at 0. Each turn, add your number on to the total. Then, if the old total was a multiple of your number, add one to your number. Otherwise, subtract 1.
The game ends when your number is 1.

Which starting numbers eventually get to 1? In the video, it looks like starting at 4 doesn't, but starting at 2 does.

My new sequence, https://oeis.org/A338807, lists the numbers that eventually reach 1. I'd love to know if there's a pattern!

I've got a new sequence in the OEIS. It's to do with a really simple number game I made up. Here's a video explaining the rules
https://www.youtube.com/watch?v=ZtGcd0xxqac

@ZevenKorian that looks like three theorems to me, or a theorem and a couple of corollaries, or something like that

@Gargron ah! I suppose that's the problem with these abstract titles - what they mean depends a lot on context

@der_bluthund jeez

@Gargron today's Solution Architect is asking me questions like "what's your password security policy", so I doubt they're involved in development

Your best guesses about what the job title "Solution Architect" entails, please.

@ZevenKorian I'm trying to think if I've ever heard James swear.
Are you aware of https://alpha61.com/primenumbershittingbear/

@matbesancon how bad is it? Do you have that repository cloned elsewhere? Are the checked-out files OK?

@ColinTheMathmo on a related note, I've just found this nice overview paper on graph colouring theorems: https://arxiv.org/abs/1611.07462. Have you seen it?

@11011110 that's a new one on me!

@dudeney_puzzles what a title!