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A120986 as a triangular array

1
21
561
1428121
4212090201
132495550220301
429200230031820455421
1430800815288127404900840561
486231824742567996842840114241428721
16796125970348840465120325584

A120986 as a square array

12514421324291430486216796
16281204952002800831824125970
1129055030031528874256348840
12022018201274079968465120
130455490042840325584
14284011424
1561428
172
1
12514421324291430486216796
16281204952002800831824125970
1129055030031528874256348840
12022018201274079968465120
130455490042840325584
14284011424
1561428
172
1