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|Number of cells||40|
|Discovered by||Robert Wainwright|
|Year of discovery||1979|
Octagon 4 is a period-4 oscillator, discovered in January 1979 by Robert Wainwright. It consists of a regular octagon with sides four cells long and of four blocks. In August 2004 Jason Summers and Mark Niemiec found a 34-glider synthesis of this oscillator. It first appeared semi-naturally in October 2014 in a soup found by Matthias Merzenich using apgsearch.
Without the blocks, the octagon will become 4 ponds.
- 40P4.19 at Heinrich Koenig's Game of Life Object Catalogs