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A050143 as a triangular array

1
01
011
0131
01471
01512151
0161832311
017255680631
01833881601921271
019421292804324482551
011052180450832112010245111

A050143 as a square array

10000000000
1111111111
1345678910
17121825334252
115325688129180
13180160280450
163192432832
11274481120
12551024
1511
1
10000000000
1111111111
1345678910
17121825334252
115325688129180
13180160280450
163192432832
11274481120
12551024
1511
1