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A053123 as a triangular array

1
1-2
1-43
1-610-4
1-821-205
1-1036-5635-6
1-1255-120126-567
1-1478-220330-25284-8
1-16105-364715-792462-1209
1-18136-5601365-20021716-792165-10
1-20171-8162380-43685005-34321287-22011
1

A053123 as a square array

111111111111
-2-4-6-8-10-12-14-16-18-20
31021365578105136171
-4-20-56-120-220-364-560-816
53512633071513652380
-6-56-252-792-2002-4368
78446217165005
-8-120-792-3432
91651287
-10-220
11
111111111111
-2-4-6-8-10-12-14-16-18-20
31021365578105136171
-4-20-56-120-220-364-560-816
53512633071513652380
-6-56-252-792-2002-4368
78446217165005
-8-120-792-3432
91651287
-10-220
11