...................................
..................OO...............
..................O.O..............
.............O....O.OO.............
............OO.....O...............
...........O..O....................
...........OOO.....................
...................................
.....................OOO...........
....................O..O...........
...............O.....OO............
.............OO.O....O.............
..............O.O..................
...............OO..................
...................................
...................................
Achim's period 16, from Life Lexicon
