1 files changed, 13 insertions, 0 deletions
diff --git a/progs/a325.py b/progs/a325.py
new file mode 100644
index 0000000..aaf56a5
--- /dev/null
+++ b/progs/a325.py
@@ -0,0 +1,13 @@
+def binomial_coeffi(n, k): 
+	if (k == 0 or k == n): 
+		return 1
+	return (binomial_coeffi(n - 1, k - 1) 
+		+ binomial_coeffi(n - 1, k)) 
+def rencontres_number(n, m): 
+	if (n == 0 and m == 0): 
+		return 1
+	if (n == 1 and m == 0): 
+		return 0
+	if (m == 0): 
+		return ((n - 1) * (rencontres_number(n - 1, 0)+ rencontres_number(n - 2, 0))) 
+	return (binomial_coeffi(n, m) * rencontres_number(n - m, 0))
+\ No newline at end of file