Hypothesis, [[past time]]: there are #117 magnetic balls here, as I guessed 10 fewer than 127 (the full hexagon as given by the [[centered hex numbers]] sequence)
Innocent fun with [[hex]] numbers tonight :)https://github.com/flancian/garden/commit/3d4e608b6cb78aa55b039cd6ce0716e9d8275e9dSee e.g.
Had pure fun writing this :) · flancian/garden@3d4e608First I calculated hex(11) in my head, took about half an hour.
Then I tried to make sense of the sequence the best I could before
looking up the closed form.