Edna

Edna
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Pattern type	Methuselah
Number of cells	149
Bounding box	20 × 20
MCPS	157
Lifespan	31192 generations
Final population	3602
L/I	209.3
F/I	24.2
F/L	0.115
L/MCPS	198.7
Static symmetry	Unspecified
Discovered by	Erik de Neve
Year of discovery	2010
Pattern files Plaintext edna.cells RLE edna.rle

Edna is a methuselah with a lifespan of 31192 generations, discovered by Erik de Neve on January 10, 2010, using Nathaniel Johnston's soup search script, being the first such pattern to be found with a longevity greater than that of Lidka. It is currently the second longest-lived known methuselah to fit within a 20×20 bounding box.

The pattern is named after Methuselah's wife, Edna.

Stable pattern

The stable pattern that results from Edna (excluding 58 escaping gliders) has 3312 cells and consists of 231 blocks, 229 blinkers (including 20 traffic lights), 140 beehives (including six honey farms), 50 boats, 50 loaves, 12 ponds, 11 ships, 11 tubs, two long boats, one barge, one eater 1, one mango, one ship-tie, and one toad.

Image gallery

• 
  A 26-cell form of Edna with lifespan 31082
  RLE: here
• 
  Generation 31192 of Edna (excluding escaping gliders)

See also

• List of long-lived methuselahs

External links

• Edna on Nathaniel Johnston's blog
• Edna on Erik de Neve's blog