Harbor

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Harbor
x = 17, y = 17, rule = B3/S23 5b2o3b2o$5bobobobo$6bo3bo2$5b2o3b2o$2o2bobo3bobo2b2o$obob2o5b2obobo$bo 13bo2$bo13bo$obob2o5b2obobo$2o2bobo3bobo2b2o$5b2o3b2o2$6bo3bo$5bobobob o$5b2o3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ HEIGHT 600 THUMBSIZE 3 ZOOM 24 GPS 2 LOOP 5 ]]
Pattern type Oscillator
Number of cells 64
Bounding box 17 × 17
Period 5
Mod 5
Heat 35.2
Volatility 0.64
Strict volatility 0.64
Discovered by David Buckingham
Year of discovery 1978

Harbor is a period-5 oscillator that was found by David Buckingham on September 17, 1978.[1] It was named by Dean Hickerson. In one phase, it consists of four ships and eight boats.

A 35-glider synthesis of this oscillator can be found in jslife.[2] A 23-glider synthesis was found by yootaa on December 22, 2017.[3] A 16-glider synthesis was found on April 22, 2023.[4]

About 1 in 40000 odd-width eightfold symmetric soups (D8_1) form a harbor in the centre.

See also

References

  1. Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
  2. Jason Summers' jslife pattern collection. Retrieved on January 5, 2020.
  3. yootaa (December 22, 2017). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
  4. shinjuku (#4159809849) (April 22, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.

External links