Pulshuttle V

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Pulshuttle V
x = 42, y = 29, rule = B3/S23 13bo14bo$12bobo7bo4bobo$13bo6b2ob2o3bo$22bo$2b2o6b2o18b2o6b2o$o4bo2bo 4bo14bo4bo2bo4bo$o4bo2bo4bo14bo4bo2bo4bo$o4bo2bo4bo8bo5bo4bo2bo4bo$2b 2o6b2o8b2ob2o5b2o6b2o$22bo3$2b2o6b2o18b2o6b2o$o4bo2bo4bo8bo5bo4bo2bo4b o$o4bo2bo4bo6b2ob2o3bo4bo2bo4bo$o4bo2bo4bo8bo5bo4bo2bo4bo$2b2o6b2o18b 2o6b2o3$22bo$2b2o6b2o8b2ob2o5b2o6b2o$o4bo2bo4bo8bo5bo4bo2bo4bo$o4bo2bo 4bo14bo4bo2bo4bo$o4bo2bo4bo14bo4bo2bo4bo$2b2o6b2o18b2o6b2o$22bo$13bo6b 2ob2o3bo$12bobo7bo4bobo$13bo14bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ HEIGHT 450 THUMBSIZE 2 ZOOM 10 GPS 6 LOOP 30 ]]
Pattern type Oscillator
Number of cells 146
Bounding box 44 × 31
Period 30 (mod: 15)
Heat 184.93
Volatility 0.98 | 0.37
Kinetic symmetry -c+e
Discovered by Robert Wainwright
Year of discovery 1985

Pulshuttle V is a period-30 pre-pulsar shuttle oscillator found by Robert Wainwright in May 1985.[1]

A 48-glider synthesis of this oscillator was found by GUYTU6J on June 2, 2021.[2] The synthesis cost was later reduced to 47 gliders. A 46-glider synthesis was found in April 2023.[3] On March 31, 2025, KtT lowered the cost to 44 gliders.[4][5]

See also

References

  1. Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
  2. GUYTU6J (June 2, 2021). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
  3. shinjuku (#4179541540) (April 26, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.
  4. KtT (March 31, 2025). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
  5. shinjuku (#9579261314) (March 31, 2025). Job triggered by Adam P. Goucher at GitLab Catagolue project.