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A354703 as a triangular array

1
12
122
2334
23234
243444
3536469
35454477
363646969
3645457664
475756107959
4858581281281216
485746106948127

A354703 as a square array

1112223333444
223345566788
23233434555
4346565787
444444554
46465686
9797101210
766786
969129
4584
9128
1612
7
1112223333444
223345566788
23233434555
4346565787
444444554
46465686
9797101210
766786
969129
4584
9128
1612
7