The long bun is a somewhat common evolutionary sequence. While it had appeared in some tables of common sequences, it wasn't recognized as its own distinct object until 2022.
The smallest predecessor of the long bun requires 7 cells; two examples are the infobox image and one of the two patterns below. The name "long bun" comes from David Raucci as the other predecessor below. Predecessors typically converge in the generation that is generation 2 of the left object and generation 3 of the right object.
As a new sequence, the long bun has been analysed almost none at all in conduits. As it only lasts for slightly over 50 generations, and it doesn't move forward in a single direction, it isn't as useful as many other sequences.
Jason's p33. Without the boat and tub stabilisation, the long bun sequences would still reform, but with a lot of junk, similarly to the p44 pi-heptomino hassler. There are multiple ways to stabilise it; the one shown is the only known non-periodic one. (click above to open LifeViewer) RLE:herePlaintext:here
