Very long ship

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Revision as of 14:41, 11 August 2021 by HotdogPi (talk | contribs) (Undo revision 81669 by GUYTU6J (talk) Partial revert. Generation 7 (or 6 if you ignore sparks) is where the predecessors converge. A very long ship formed this way always goes through generations 7-17.)
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Very long ship
x = 5, y = 5, rule = B3/S23 3b2o$2bobo$bobo$obo$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]] #C [[ THUMBSIZE 2 HEIGHT 480 ]]
Pattern type Strict still life
Number of cells 10
Bounding box 5 × 5
Frequency class 15.6
Static symmetry Unspecified
Discovered by Unknown
Year of discovery Unknown

Very long ship (or long long ship) is the long long version of the ship.

Commonness

It is the twenty-ninth most common still life in Achim Flammenkamp's census, being less common than tub with tail but more common than table and table.[1] It is also the thirty-fourth most common object on Adam P. Goucher's Catagolue.[2]

It is about one-fifth as common as the long ship but almost 2,000 times as common as the long^3 ship.

b3o$o3bo$o4bo$o5bo$bo3bo$2b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 12 THUMBSIZE 2 STOP 7 ]]
A decent number of very long ships, although not enough to be almost all, form from the right half of generation 7 of this pattern, where generation 0 is a bakery predecessor with one cell moved to an adjacent location. The very long ship forms in generation 17. Some of them go through the sequence shown here, while others reach generation 7 in a different way. Because this is a common predecessor, the very long ship is often accompanied by two nearby boats.
(click above to open LifeViewer)

Synthesis

On March 28, 2007 Dean Hickerson found a 4-glider synthesis of this still life.[3]

References

  1. Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
  2. Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.
  3. Dean Hickerson's 2, 3, and 4-glider syntheses pattern collection

External links

Vessels
No corners (barges) (^-2) • (^-1) • ^0^1^2^3
One corner (boats) (^-2) • (^-1) • ^0^1^2^3
Two corners (ships) (^-1) • ^0^1^2^3