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A174966 as a triangular array

1
11
1-21
1-19-191
1-74-324-741
1-223-2708-2708-2231
1-594-16659-45884-16659-5941
1-1475-85839-531011-531011-85839-14751
1-3506-394388-4852814-10777040-4852814-394388-35061
1

A174966 as a square array

1111111111
1-2-19-74-223-594-1475-3506
1-19-324-2708-16659-85839-394388
1-74-2708-45884-531011-4852814
1-223-16659-531011-10777040
1-594-85839-4852814
1-1475-394388
1-3506
1
1111111111
1-2-19-74-223-594-1475-3506
1-19-324-2708-16659-85839-394388
1-74-2708-45884-531011-4852814
1-223-16659-531011-10777040
1-594-85839-4852814
1-1475-394388
1-3506
1