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A120247 as a triangular array

1
1-1
1-3-1
1-6-101
1-10-50351
1-15-175490126-1
1-21-49041165292-462-1
1-28-117624696116424-60984-17161
1-36-25201164241646568-3737448-73616464351
1-45-495045738016818516-133613766-131589315920205024310-1

A120247 as a square array

1111111111
-1-3-6-10-15-21-28-36-45
-1-10-50-175-490-1176-2520-4950
135490411624696116424457380
11265292116424164656816818516
-1-462-60984-3737448-133613766
-1-1716-736164-131589315
164359202050
124310
-1
1111111111
-1-3-6-10-15-21-28-36-45
-1-10-50-175-490-1176-2520-4950
135490411624696116424457380
11265292116424164656816818516
-1-462-60984-3737448-133613766
-1-1716-736164-131589315
164359202050
124310
-1