Grow-by-one object

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A grow-by-one object is a pattern whose population increases by one cell every generation. The smallest known grow-by-one object is the following 44-cell pattern (David Bell's one-cell improvement of a pattern found by Nicolay Beluchenko, September 2005):

#O David Bell, Nicolay Beluchenko, September 2005 #C A 44-cell grow-by-one-object; the smallest such object known as of March 2018. #C htt:// x = 17, y = 15, rule = B3/S23 8b2o$7b2o$9bo$11b2o$10bo2$9bo2b2o$b2o5b2o4bo$2o5bo5bo$2bo4bobo3b2o$4bo 2bo4b2obo$4b2o7b2o$8bo4bob2o$7bobo2bob2o$8bo! #C [[ THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 16 THUMBSIZE 2 WIDTH 640 HEIGHT 640 ]]
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