Cis-block on candlefrobra

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Cis-block on candlefrobra
x = 5, y = 10, rule = B3/S23 2b2o$2b2o2$4o$o3bo$3bo$3bo$2bo$bobo$2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ HEIGHT 500 THUMBSIZE 3 ZOOM 33 GPS 2 ]]
Pattern type Oscillator
Family Candlefrobra
Number of cells 16
Bounding box 10 × 5
Frequency class 32.5
Period 3 (mod: 3)
Heat 6
Volatility 0.41 | 0.41
Kinetic symmetry n
Rotor type Candlefrobra
Discovered by Unknown
Year of discovery Unknown

Cis-block on candlefrobra was found by either Robert Wainwright in November 1984[1] or Dean Hickerson on September 10, 1989.[2][note 1]

Occurrence

See also: List of common oscillators

Cis-block on candlefrobra is about the forty-seventh most common naturally-occurring oscillator in Achim Flammenkamp's census.[4] On Catagolue, it is the fifth most common period 3 oscillator, being 1.49 times less common than caterer but 4.20 times more common than cis-beehive on candlefrobra. It is 2.88 times rarer than the trans isomer.[5]

Construction

A 6-glider synthesis of the cis-block on candlefrobra was found in November 2020, based on a 5-glider synthesis of the cis-boat down version.[6] A 5-glider synthesis was found in March 2023.[7]

See also

Notes

  1. This discrepancy appears to be due to a mistake while writing the Life Lexicon. Hickerson does not give this oscillator a name in his collection, and instead uses "candlefrobra" to refer to a variant of candelabra, attributing the latter to Wainwright instead.[3]

References

  1. "Candlefrobra". The Life Lexicon. Stephen Silver. Retrieved on March 15, 2020.
  2. Dean Hickerson's oscillator stamp collection. Retrieved on March 15, 2020.
  3. Dave Greene (March 14, 2020). Re: Thread for basic questions (discussion thread) at the ConwayLife.com forums
  4. Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
  5. Adam P. Goucher. "Census". Catagolue. Retrieved on May 4, 2023.
  6. bubblegum (November 9, 2020). Message in #cgol on the Conwaylife Lounge Discord server
  7. shinjuku (#3962004812) (March 19, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.