Most cis-boats on docks form via generation 1 of this sequence, which has at least two 9-cell parents shown here. A similarity can be seen between generation 3 of this sequence and the activated loaf mentioned in the block on dock page.
All strict still lifes with a population of 22 or fewer cells, all oscillators with 16 or fewer cells, and all spaceships with 31 or fewer cells are known to be glider-constructible. A glider synthesis of this object can be found in the infobox to the right.
