Gotts dots

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Gotts dots
x = 187, y = 39, rule = B3/S23 o$o$o9$4bo3bo$5bobo$6bo2bo$9bo$9bo9$185bo$186bo$182bo3bo$183b4o$179bo$ 180b2o$179bo$183b4o$182bo3bo$186bo$185bo$175bo$176bo$170bo5bo$171b6o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
Pattern type Miscellaneous
Number of cells 41
Bounding box 187 × 39
Static symmetry C1
Discovered by Bill Gosper
Year of discovery 2006

Gotts dots (or 41 dots[1]) is a 41-cell pattern that exhibits O(t ln(t)) growth. It was found by Bill Gosper in March 2006 and helped lead to the construction of the 26-cell quadratic growth pattern.[2]

Collisions within the pattern cause it to sprout its nth switch engine at generation t ~ 224n-6. The first switch engine appears roughly 220,000 generations in, and the second 3.6 trillion.

References

  1. ↑ Jason Summers' jslife oversize pattern collection. Retrieved on May 19, 2009.
  2. ↑ Quadratic Population Growth, Revisited at Game of Life News. Posted by Dave Greene on May 12, 2006.