54P23
54P23  
View static image  
Pattern type  Oscillator  

Number of cells  54  
Bounding box  20 × 20  
Period  23  
Mod  23  
Heat  21.6  
Volatility  0.74  
Strict volatility  0.74  
Discovered by  Nico Brown Period1GliderGun  
Year of discovery  2022  
 
 
 

54P23 is a period23 oscillator and honey farm hassler discovered by Nico Brown on November 6, 2022.^{[1]} It is the fifth unique period23 oscillator to be discovered. With only 55 cells in its original minimum phase, it was the smallest known oscillator of its period,^{[2]} surpassing 70P23 which was discovered just two days earlier.
55P23 in its original form (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here 
On November 7, 2022, GUYTU6J found a 26glider synthesis.^{[3]} On December 13, 2023, Chris857 lowered the cost to 25 gliders.^{[4]}^{[5]}
On March 3, 2024, Period1GliderGun reduced the population to 54 cells from the original 55,^{[6]} by noticing that a blinker could replace the block catalyst. The blinker is rephased with each cycle.
LCM oscillators
The LCM oscillator below is shown due to being the smallest known one by population while also satisfying the condition that at least one cell oscillates at the full period.
103P69 with Grin reagent weld loading dock. The block catalyst cannot be replaced with a blinker here. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here 
References
 ↑ Nico Brown (November 6, 2022). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
 ↑ Ian07 (November 6, 2022). Re: Smallest Known Oscillators to p106 (and Beyond) (discussion thread) at the ConwayLife.com forums
 ↑ GUYTU6J (November 7, 2022). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
 ↑ Chris857 (December 13, 2023). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
 ↑ shinjuku (#5740541142) (December 13, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.
 ↑ Carson Cheng (March 4, 2024). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
External links
 Patterns
 Oscillators with 54 cells
 Periodic objects with minimum population 54
 Patterns with 54 cells
 Patterns found by Nico Brown
 Patterns found by Period1GliderGun
 Patterns found in 2022
 Patterns that can be constructed with 25 gliders
 Oscillators
 Oscillators with period 23
 Primeperiod oscillators
 Oscillators with mod 23
 Oscillators with heat 21
 Oscillators with volatility 0.74
 Oscillators with strict volatility 0.74
 Unnamed periodic objects
 Honey farm hasslers