diff --git a/README.md b/README.md
index ff29ee0..c01ad1a 100644
--- a/README.md
+++ b/README.md
@@ -22,4 +22,5 @@
 - https://tinchicus.com/2022/06/29/rust-el-parametro-_/ (bucles2)
 - https://tinchicus.com/2022/06/30/rust-loop-27/ (arreglos2)
 - https://tinchicus.com/2022/07/01/rust-loop-labels/ (nombre)
-- https://tinchicus.com/2022/07/04/rust-while/ (whileloop)
+- https://tinchicus.com/2022/07/04/rust-while/ (while)
+- https://tinchicus.com/2022/07/05/rust-funciones-recursivas/ (recursiva)
diff --git a/recursiva/Cargo.toml b/recursiva/Cargo.toml
new file mode 100644
index 0000000..e398b33
--- /dev/null
+++ b/recursiva/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "recursiva"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/recursiva/src/main.rs b/recursiva/src/main.rs
new file mode 100644
index 0000000..cb0e313
--- /dev/null
+++ b/recursiva/src/main.rs
@@ -0,0 +1,19 @@
+fn recursivo(n: i32) {
+    let mut _v: i32 = 0;
+
+    if n % 2 == 0 {
+        _v = n / 2;
+    } else {
+        _v = 3 * n + 1;
+    }
+
+    println!("{}", _v);
+
+    if _v != 1 {
+        recursivo(_v)
+    }
+}
+
+fn main() {
+    recursivo(12)
+}