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A202502 as a triangular array

1
02
013
0025
00138
0002513
00013821
0000251334
00001382155
0000025133489
000001382155144
00000025133489233
0000001382155

A202502 as a square array

1000000000000
210000000000
32100000000
5321000000
853210000
138532100
211385321
342113853
553421138
89553421
1448955
233
1000000000000
210000000000
32100000000
5321000000
853210000
138532100
211385321
342113853
553421138
89553421
1448955
233