diff --git a/Python/leno.py b/Python/leno.py
new file mode 100755
index 0000000..31bac36
--- /dev/null
+++ b/Python/leno.py
@@ -0,0 +1,21 @@
+#!/bin/python3
+
+bias = 0.52
+r_bias = 1 - bias
+
+R = [0, 1, 2, 3]
+
+N = len(R)
+
+def p(n):
+	if n == 0:
+		return r_bias * (N-1)
+	return bias * (N-1-n) * r_bias * n
+
+sum = 0
+for i in R:
+	k = p(i)
+	sum += k
+	print(f"p({i}) -> {k}")
+
+print(sum)