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:p = period

:p30 shuttle = queen bee shuttle

:p46 shuttle = twin bees shuttle

:p54 shuttle (p54) A surprising variant of the twin bees shuttle found by Dave Buckingham in 1973. See also centinal. 


OO.........................OO
.O.........................O.
.O.O.......O.............O.O.
..OO.....O..O.....O......OO..
............O.....OO.........
........O..........OO........
........O...OO....OO.........
.........OOOOO...............
.............................
.........OOOOO...............
........O...OO....OO.........
........O..........OO........
............O.....OO.........
..OO.....O..O.....O......OO..
.O.O.......O.............O.O.
.O.........................O.
OO.........................OO

:p6 shuttle (p6) The following oscillator found by Nicolay Beluchenko in February 2004. 


O.............
OOO...........
...O..........
..OO..........
..............
......O.......
.....OOOO.....
......O..O....
.......OOO....
..............
..........OO..
..........O...
...........OOO
.............O
This is extensible in more than one way: 

O........................
OOO......................
...O.....................
..OO.....................
.........................
......O..................
.....OOOO................
......O..O...............
.......OOO...............
.........................
..........OOO............
..........O..O...........
...........OOOO..........
.............O...........
.........................
.................O.......
................OOO......
.................O.O.....
.................O.O.....
..................OO.....
.....................OO..
.....................O.O.
.......................O.
.......................OO

:pair of bookends = bookends

:pair of tables = table on table

:paperclip (p1)