One per generation
From LifeWiki
One per generation  
Pattern type  Wickstretcher  

Direction  Diagonal  
Period  4  
Speed  c/4  
Number of cells  44  
Discovered by  Nicolay Beluchenko  
Year of discovery  2005  

One per generation is a 44cell tubstretcher that grows by exactly 1 cell per generation. It was created by Nicolay Beluchenko in September 2005 based on his tubstretcher modification of crab. It was made one cell smaller by David Bell.^{[1]}
References
 ↑ Jason Summers' jslife pattern collection. Retrieved on May 19, 2009.