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A054120 as a triangular array

1
11
131
1661
191891
1123939121
1156911469151
118108261261108181
121156507750507156211
12421387917791779879213241
127279140436725058

A054120 as a square array

11111111111
1369121518212427
16183969108156213279
19391142615078791404
1126926175017793672
11510850717795058
118156879
121213
124
1
11111111111
1369121518212427
16183969108156213279
19391142615078791404
1126926175017793672
11510850717795058
118156879
121213
124
1