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A175721 as a triangular array

0
3-1
-34-1
10-63-1
-1814-43-1
42-2410-53-1
-8747-1912-53-1
190-8342-2211-53-1
-405152-8445-2011-53-1

A175721 as a square array

03-310-1842-87190-405
-14-614-2447-83152
-13-410-1942-84
-13-512-2245
-13-511-20
-13-511
-13-5
-13
-1
03-310-1842-87190-405
-14-614-2447-83152
-13-410-1942-84
-13-512-2245
-13-511-20
-13-511
-13-5
-13
-1