35201M

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35201M
x = 20, y = 20, rule = B3/S23 4o2b2o3b2ob2o3bo$2obo2b2ob3obobo2b2o$bob2o4bo5b2ob2o$bo4bo4bo4bob2o$o 5bobobo4bobo$b3obo2b5obobob2o$ob2o2b4obob2ob4o$2bo6b2obobobobo$b4o4bo 4b2obobo$b2o6b3o3b3o$bo3bo2bo6b5o$3o3bo2bo4bob3o$b2obobob2o4b4o$obo2b 2obo2bobob4o$2o4bobob2obo2bobo$b2o3bobob7o$o3bobo6b3o2b2o$2b2o2bo2bobo b2obo2bo$3bobobobobo4b2o$2o2b2obobo2bo! #C [[ THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
Pattern type Methuselah
Number of cells 183
Bounding box 20×20
MCPS 188
Lifespan 35201 generations
Final population 5828
L/I 192.4
F/I 31.8
F/L 0.166
L/MCPS 187.2
Discovered by Andrzej Okrasinski
Year of discovery 2008

35201M is a methuselah with a lifespan of 35201 generations, discovered by Andrzej Okrasinski on September 4, 2008 as part of his census. It was rediscovered and reported on the ConwayLife.com forums by forum user Lewis on March 28, 2010.[1].

Adam P. Goucher, Dave Greene and Matthias Merzenich proposed various modifications of 35201M to reduce its initial population, including:

Lifespan Initial population Initial size Found by
35154 44 22×28 Adam P. Goucher
35180 34 27×27 Dave Greene
35160 31 31×27 Dave Greene
35181 33 26×28 Matthias Merzenich
35161 30 32×28 Matthias Merzenich

Image gallery

See also

References

  1. 'Lewis' (March 28, 2010). "35,000+ generation methuselah". Retrieved on July 3, 2016.