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A140280 as a triangular array

1
11
121
1331
14641
150051
1650561
1721515271
1816300301681
1918321212321891
10200020002001
112530048480302511

A140280 as a square array

111111111111
12345678901
13605216182025
1400153032030
1551501200
16230122048
171632048
181800
192030
1025
11
1
111111111111
12345678901
13605216182025
1400153032030
1551501200
16230122048
171632048
181800
192030
1025
11
1