Mapping LED strip wrapped around tree

Hi,
as title says. I wrapped WS2811 200 LED around tree and in 1D everything works.
I am now trying to create ledmap on front visible LEDs. However I am stuck and starting to think if it’s even possible because there is an uneven LEDs in each row and I am unable to create valid ledmap or I don’t understand how.
Every example I found is forming rectangle of all LEDs (both on and off). In this case I would just -1 those I don’t want or create 2d-gaps but how to create uneven matrix?

Thanks for any clue

EDIT: Image better than words :slight_smile: