Gabriel's p138
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Gabriel's p138  
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Pattern type  Oscillator  

Number of cells  36  
Bounding box  33×33  
Period  138  
Mod  69  
Heat  57.7  
Volatility  1.00  
Strict volatility  0.87  
Discovered by  Gabriel Nivasch  
Year of discovery  2002  
 
 
 

Gabriel's p138 is a period 138 oscillator discovered by Gabriel Nivasch on October 13, 2002. In terms of its 36 cells, it is, by far, the smallest known period 138 oscillator.^{[1]} Within a month of its discovery, Jason Summers found a 12glider synthesis for this oscillator.^{[2]}
See also
References
 ↑ Jason Summers' allosc pattern collection.
 ↑ Jason Summers' jslife pattern collection.
External links
 Gabriel's p138 at the Life Lexicon
 Gabriel's p138 at Adam P. Goucher's Catagolue
 Gabriel's p138 on blocks at Adam P. Goucher's Catagolue
 36P136.1 at Heinrich Koenig's Game of Life Object Catalogs (note: site incorrectly lists period as 136 instead of 138)
Categories:
 Patterns
 Oscillators with 36 cells
 Patterns with 36 cells
 Patterns found by Gabriel Nivasch
 Patterns found in 2002
 Patterns that can be constructed with 12 gliders
 Oscillators
 Periodic objects with minimum population 36
 Oscillators with period 138
 Oscillators with mod 69
 Oscillators with heat 57
 Oscillators with volatility 1.00
 Oscillators with strict volatility 0.87
 Patterns with 90degree rotation symmetry
 Flipping oscillators