38P7.2: Difference between revisions

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synthesis2 and apgcode2
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|isorulemax      = B2n34ck5cen6ace78/S234ceikz5acnr6-c7e8
|isorulemax      = B2n34ck5cen6ace78/S234ceikz5acnr6-c7e8
|synthesis        = 14
|synthesis        = 14
|synthesis2      = 13
|synthesisRLE    = true
|synthesisRLE    = true
|plaintext        = true
|plaintext        = true
|rle              = true
|rle              = true
|apgcode          = xp7_wj3y13jz8kbr4u0u4rbk8zy01x1
|apgcode          = xp7_wj3y13jz8kbr4u0u4rbk8zy01x1
|apgcode2        = xp7_w3rgy0ccz8o090v0s27zx11w345031
|pentadecathlonid = 38P7.2
|pentadecathlonid = 38P7.2
|animated        = true
|animated        = true

Revision as of 20:28, 11 July 2021

38P7.2
x = 13, y = 11, rule = B3/S23 4bo3bo$o2bobobobo2bo$obo2bobo2bobo$bo2b2ob2o2bo$5bobo$2b2o5b2o$2bo7bo$ 4bo3bo2$bo2bo3bo2bo$2b2o5b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ ZOOM 27 GPS 3 LOOP 7 HEIGHT 480 WIDTH 480 ]]
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Pattern type Oscillator
Number of cells 38
Bounding box 15 × 11
Period 7 (mod: 7)
Heat 23.4
Volatility 0.82 | 0.82
Kinetic symmetry Unspecified
Discovered by Nicolay Beluchenko
Year of discovery 2009

38P7.2 is an unnamed period-7 oscillator discovered by Nicolay Beluchenko on February 17, 2009.[1] It provides four sparks in generation 4 that are useful in creating p7 bumper as well as non-trivial oscillators of higher periods such as snacker on 38P7.2. A variation of this oscillator can be created by displacing one half of the oscillator by two cells.

It first appeared semi-naturally in March 2016.[2] gmc_nxtman found an 18-glider synthesis of this oscillator on August 13, 2017.[3] Goldtiger997 improved this to 14 gliders on February 12, 2018.[4]

In March 2018, Josh Ball found a pattern that can be stabilized by copies of 38P7.2 without blocks.[5]

An alternate form of this oscillator
RLE: here

See also

References

  1. ↑ Jason Summers' all-osc pattern collection.
  2. ↑ Adam P. Goucher (March 19, 2016). Re: Soup search results (discussion thread) at the ConwayLife.com forums
  3. ↑ gmc_nxtman (August 13, 2017). Re: Soup Search Results (discussion thread) at the ConwayLife.com forums
  4. ↑ Goldtiger997 (February 12, 2018). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
  5. ↑ Josh Ball (March 27, 2018). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
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