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A128541 as a triangular array

1
11
012
0023
00035
000058
00000813
0000001321
00000002134
000000003455
0000000005589
000000000089144
00000000000144233

A128541 as a square array

1100000000000
110000000000
22000000000
3300000000
550000000
88000000
131300000
21210000
3434000
555500
89890
144144
233
1100000000000
110000000000
22000000000
3300000000
550000000
88000000
131300000
21210000
3434000
555500
89890
144144
233