E-heptomino

E-heptomino (or E) is a common heptomino named by John Conway. It stabilizes at generation 343, leaving behind four beehives, five blocks, one blinker and one escaping glider.

E-heptomino
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Pattern type Methuselah
Number of cells 7
Bounding box 4×3
MCPS 7
Lifespan 343 generations
Final population 51
L/I 49
F/I 7.3
F/L 0.149
L/MCPS 49
Discovered by John Conway
Year of discovery 1970
E-heptomino at generation 343
gollark: Hmm, so what extra features are needed?
gollark: Anyway, good news systemd-dislikers, I made an EXCELLENT and AMAZING replacement using the RUST programming language.
gollark: I have DashMap in here because of some vague dream of concurrently doing... stuff.
gollark: ```rustuse std::process::Command;use anyhow::Result;use std::path::Path;use std::fs;#[derive(serde::Serialize, serde::Deserialize, Debug)]struct RawServiceSpec { command: String, args: Vec<String>, name: Option<String>}#[derive(Debug)]struct ServiceSpec { command: String, args: Vec<String>, name: String}fn load_spec(path: &Path) -> Result<ServiceSpec> { let file = fs::read_to_string(path)?; let raw: RawServiceSpec = toml::from_str(&file)?; Ok(ServiceSpec { command: raw.command, args: raw.args, name: path.file_stem().unwrap().to_string_lossy().to_string() })}fn run_service(serv: ServiceSpec) -> Result<()> { println!("thread {:?}", serv); loop { println!("Starting"); let mut child = Command::new("/bin/env") .arg("python3") .arg("test.py") .spawn()?; child.wait()?; } Ok(())}fn main() -> Result<()> { let services = dashmap::DashMap::new(); for entry in fs::read_dir("./services")? { let s = load_spec(&entry?.path())?; services.insert(s.name.clone(), s); } let mut handles = Vec::new(); for e in services { handles.push(std::thread::spawn(|| run_service(e.1))); } for handle in handles { handle.join().unwrap(); } Ok(())}```
gollark: Well, I guess that's systemd replaced.

See also
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