Original post on mathstodon.xyz

I've just come up with a sequence I can't believe isn't in the #OEIS (#ICBINIOEIS)!

Take cards labelled 1 ... N. Shuffle them.

Repeat this procedure: look at the top card's value, X. Move X cards from the top of the deck to the back, one at a time.

If you ever end up back at your first card […]

Original post on mathstodon.xyz

Here's an integer sequence that isn't in the #OEIS yet:

0, 1, 2, 3, 2, 4, 5, 3, 6, 5, 7, 6, 4, 8, 7, 9, 8, 7, 5, …

Can you guess the next few terms? Can you guess the general rule?

I haven't done one of these for a while, but the usual rules apply:

* You can ask for hints. Say if you want a […]