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A124943 as a triangular array

1
11
201
3101
42001
631001
8420001
116310001
1584200001
201253100001
2616742000001
352210531000001
4529146420000001
5840198531

A124943 as a square array

112346811152026354558
101234681216222940
100123457101419
10001234568
1000012345
100000123
10000001
100000
10000
1000
100
10
1
112346811152026354558
101234681216222940
100123457101419
10001234568
1000012345
100000123
10000001
100000
10000
1000
100
10
1