Jim asked for some changes, which I've done, and I've put the thing on my own site: http://somethingorotherwhatever.com/lights-modular-out/ I came up with a question, which Jim says I should share here: Set the board to N states and N×N size. Set the top row to 0..N, and everywhere else except the bottom row to 0. What does the bottom row look like? Form a sequence of numbers by interpreting the bottom row as a number in base N. Does it increase monotonically? I haven't thought very hard about this at all, I've just done it for N=2 to 6. You get 2, 19, 133, 3034, 12238. That isn't in the OEIS, so I'll submit it. <http://somethingorotherwhatever.com/lights-modular-out/> On Tue, 28 Nov 2017 at 14:59 Christian Lawson-Perfect < christianperfect@gmail.com> wrote:

Here's a quick mock-up: https://codepen.io/christianp/full/VrEYYb/

On Tue, 28 Nov 2017 at 14:33 James Propp <jamespropp@gmail.com> wrote:

...

Anyone know of a good website that lets you play Lights Out?

I found some websites that offer playing for free, but they aren't the sort of sites I'd recommend to others, because they have offensive ad-content or require downloads or just seem sketchy in one way or another.

I'd especially like to know of a site that lets you play a mod 3 version, where clicking on a cell increments it and its neighbors by 1 mod 3. (The usual version is mod 2.)

Thanks,

Jim Propp _______________________________________________ math-fun mailing list math-fun@mailman.xmission.com https://mailman.xmission.com/cgi-bin/mailman/listinfo/math-fun