1 files changed, 7 insertions, 0 deletions
diff --git a/progs/a151.py b/progs/a151.py
new file mode 100644
index 0000000..030c8b6
--- /dev/null
+++ b/progs/a151.py
@@ -0,0 +1,7 @@
+def jacobsthal_num(n): 
+	dp = [0] * (n + 1) 
+	dp[0] = 0
+	dp[1] = 1
+	for i in range(2, n+1): 
+		dp[i] = dp[i - 1] + 2 * dp[i - 2] 
+	return dp[n]
+\ No newline at end of file