diff --git a/notebooks/buchner_qtm_length.py b/notebooks/buchner_qtm_length.py
new file mode 100644
index 0000000..13f4d6c
--- /dev/null
+++ b/notebooks/buchner_qtm_length.py
@@ -0,0 +1,10 @@
+from domains.cube import pattern
+
+for start in range(10,20):
+    a = [len(pattern.buchner2018pattern(seed=s)) for s in range(start*10, (start+1)*10)]
+    print(start*10, sum(a)/len(a))
+print()
+a = [len(pattern.buchner2018pattern(seed=s)) for s in range(100, 200)]
+print('min ', min(a))
+print('mean', sum(a)/len(a))
+print('max ', max(a))