1 files changed, 2 insertions, 0 deletions
diff --git a/progs/a630.py b/progs/a630.py
new file mode 100644
index 0000000..9de4ca6
--- /dev/null
+++ b/progs/a630.py
@@ -0,0 +1,2 @@
+def square_Sum(n):  
+    return int(n*(4*n*n-1)/3) 
+\ No newline at end of file