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| -rw-r--r-- | src/projecteuler/044.py | 9 |
1 files changed, 9 insertions, 0 deletions
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) + |