1 files changed, 18 insertions, 0 deletions
diff --git a/progs/a542.py b/progs/a542.py
new file mode 100644
index 0000000..a254bee
--- /dev/null
+++ b/progs/a542.py
@@ -0,0 +1,18 @@
+def is_num_keith(x): 
+	terms = [] 
+	temp = x 
+	n = 0 
+	while (temp > 0): 
+		terms.append(temp % 10) 
+		temp = int(temp / 10) 
+		n+=1 
+	terms.reverse() 
+	next_term = 0 
+	i = n 
+	while (next_term < x): 
+		next_term = 0 
+		for j in range(1,n+1): 
+			next_term += terms[i - j] 
+		terms.append(next_term) 
+		i+=1 
+	return (next_term == x) 
+\ No newline at end of file