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A286109 as a triangular array

0
22
535
9999
1412101214
202016162020
27252721272527
3535353535353535
444240423642404244
54545050464650505454
6563655957555759656365
777777776969696977777777
90888688908078809088868890

A286109 as a square array

0259142027354454657790
239122025354254637788
59101627354050657786
9121621354250597788
142027353646576990
2025354246556980
27354050576978
354250596980
4454657790
54637788
657786
7788
90
0259142027354454657790
239122025354254637788
59101627354050657786
9121621354250597788
142027353646576990
2025354246556980
27354050576978
354250596980
4454657790
54637788
657786
7788
90