From b9ec3666d5c931b02a0988ddf01394e55e43a270 Mon Sep 17 00:00:00 2001
From: Reiner Herrmann <reiner@reiner-h.de>
Date: Fri, 25 Jun 2010 20:24:00 +0200
Subject: projecteuler solution 44

---
 src/projecteuler/044.py | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 src/projecteuler/044.py

diff --git a/src/projecteuler/044.py b/src/projecteuler/044.py
new file mode 100644
index 0000000..5baae84
--- /dev/null
+++ b/src/projecteuler/044.py
@@ -0,0 +1,9 @@
+
+pentagonal = [n*(3*n-1)/2 for n in xrange(1, 10000)]
+pentagonal_set = set(pentagonal)
+
+for j in pentagonal:
+	for k in pentagonal:
+		if j+k in pentagonal_set and j-k in pentagonal_set:
+			print abs(j-k)
+
-- 
cgit v1.2.3