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A137408 as a triangular array

1
02
-12-4
0-44-8
1-616-1616
06-1640-3232
-112-4488-12896-64
0-840-128208-288192-128
1-20100-296592-800832-512256
010-80328-8001472-17921792-1024512
-1

A137408 as a square array

10-1010-1010-1
22-4-6612-8-2010
-4416-16-4440100-80
-8-164088-128-296328
16-32-128208592-800
3296-288-8001472
-64192832-1792
-128-5121792
256-1024
512
10-1010-1010-1
22-4-6612-8-2010
-4416-16-4440100-80
-8-164088-128-296328
16-32-128208592-800
3296-288-8001472
-64192832-1792
-128-5121792
256-1024
512