Caterer on 42P7.1
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Caterer on 42P7.1  
View static image  
Pattern type  Oscillator  

Number of cells  54  
Bounding box  14×17  
Period  21  
Mod  21  
Heat  20.48  
Volatility  0.50  
Strict volatility  0.01  
Discovered by  Unknown  
Year of discovery  Unknown  
 
 

Caterer on 42P7.1 is a period 21 oscillator. It was the smallest known until the discovery of caterer on 28P7.3. Although it is composed of two smaller oscillators, caterer and 42P7.1 (a 44P7.2 variant), it is not considered trivial due to the existence of one cell that oscillates at the full period.
External links
 Caterer on 42P7.1 at Adam P. Goucher's Catagolue