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A123970 as a triangular array

1
1-1
1-31
1-65-1
1-1015-71
1-1535-289-1
1-2170-8445-111
1-28126-210165-6613-1
1-36210-462495-28691-151
1-45330-9241287-1001455-12017-1
1-55495-17163003-30031820-680153-191
1-66715-30036435-8008

A123970 as a square array

111111111111
-1-3-6-10-15-21-28-36-45-55-66
15153570126210330495715
-1-7-28-84-210-462-924-1716-3003
1945165495128730036435
-1-11-66-286-1001-3003-8008
113914551820
-1-15-120-680
117153
-1-19
1
111111111111
-1-3-6-10-15-21-28-36-45-55-66
15153570126210330495715
-1-7-28-84-210-462-924-1716-3003
1945165495128730036435
-1-11-66-286-1001-3003-8008
113914551820
-1-15-120-680
117153
-1-19
1