1 files changed, 8 insertions, 0 deletions
diff --git a/progs/a7.py b/progs/a7.py
new file mode 100644
index 0000000..4d08386
--- /dev/null
+++ b/progs/a7.py
@@ -0,0 +1,8 @@
+def bell_Number(n): 
+    bell = [[0 for i in range(n+1)] for j in range(n+1)] 
+    bell[0][0] = 1
+    for i in range(1, n+1):
+        bell[i][0] = bell[i-1][i-1]
+        for j in range(1, i+1): 
+            bell[i][j] = bell[i-1][j-1] + bell[i][j-1] 
+    return bell[n][0] 
+\ No newline at end of file