diff --git a/lib/newman_conway.py b/lib/newman_conway.py
index 7f5341a..c08cb71 100644
--- a/lib/newman_conway.py
+++ b/lib/newman_conway.py
@@ -3,4 +3,16 @@ def newman_conway(num):
         Time Complexity: ?
         Space Complexity: ?
     """
-    pass
+    if num <= 0:
+        raise ValueError
+    result = []
+    for i in range(1,num+1):
+        result.append(sequence(i))
+    return " ".join(str(n) for n in result)
+
+def sequence(i):
+    if i == 1 or i == 2:
+        return 1
+    else:
+        next = sequence(sequence(i-1)) + sequence(i-sequence(i-1))
+        return next