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Task/Hailstone-sequence/Ursa/hailstone-sequence.ursa

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+import "math"
+
+def hailstone (int n)
+	decl int<> seq
+	while (> n 1)
+		append n seq
+		if (= (mod n 2) 0)
+			set n (floor (/ n 2))
+		else
+			set n (int (+ (* 3 n) 1))
+		end if
+	end while
+	append n seq
+	return seq
+end hailstone