#N branching-triangles.rle
#O NimbleRogue, 10 January 2024
#C
#C This pattern travels to the top left, ejecting replicating
#C objects behind it. It is unclear what shape is being traced,
#C as it is either constantly changing, or only some layers
#C are being shown at a time.
#C
#C Reference:
#C https://conwaylife.com/forums/viewtopic.php?p=175364#p175364
x = 3, y = 3, rule = B3aijr4ekz5er/S2-ci3-acy4einrtz5n6c7
2o$b2o$bo!