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A354470 as a triangular array

0
11
202
3333
42424
555555
6404046
77111177
868020868
9999339999
10810810210810810
111111111111111111111111

A354470 as a square array

01234567891011
103254769811
234501891011
3254109811
4501231011
54103211
67891011
769811
891011
9811
1011
11
01234567891011
103254769811
234501891011
3254109811
4501231011
54103211
67891011
769811
891011
9811
1011
11